Rank Product Name Score
1 NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings, Learning Guide, Great Stem Science Kit NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit – Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings, Learning Guide, Great Stem Science Kit
JMW Sales, Inc
9.8 GET ON AMAZON
2 NATIONAL GEOGRAPHIC Rock Tumbler Kit-3LB Extra Large Capacity, 3LB Rough Gemstones 4 Polishing Grits, Jewelry Fastenings, an Educational STEM Science Kit NATIONAL GEOGRAPHIC Rock Tumbler Kit-3LB Extra Large Capacity, 3LB Rough Gemstones 4 Polishing Grits, Jewelry Fastenings, an Educational STEM Science Kit
JMW Sales, Inc.
9.6 GET ON AMAZON
3 Advanced Professional Rock Tumbler Kit - with Digital 9-day Polishing timer & 3 speed settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids all ages : Geology Toy Advanced Professional Rock Tumbler Kit – with Digital 9-day Polishing timer & 3 speed settings – Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids all ages : Geology Toy
Dan&Darci
9.2 GET ON AMAZON
4 NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit - 3lbs Gemstones of 9 Varieties Including Tiger NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit – 3lbs Gemstones of 9 Varieties Including Tiger’s Eye, Amethyst & Quartz – 4 Grades of Grit, Jewelry Fastenings & Detailed Learning Guide
JMW Sales, Inc.
9.1 GET ON AMAZON
5 Professional Advanced Rock Tumbler Kit, include Rough Gemstones, 4 Polishing Grits, with 3 Speed Settings and Digital 9-Day Timer Professional Advanced Rock Tumbler Kit, include Rough Gemstones, 4 Polishing Grits, with 3 Speed Settings and Digital 9-Day Timer
AliKids
8.9 GET ON AMAZON
6 NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit - Rock Polisher for Kids and Adults, Complete Rock Tumbler Kit, Durable Leak-Proof Tumbler, Rocks, Grit, and 5 Jewelry Fastenings, A Great STEM Hobby NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit – Rock Polisher for Kids and Adults, Complete Rock Tumbler Kit, Durable Leak-Proof Tumbler, Rocks, Grit, and 5 Jewelry Fastenings, A Great STEM Hobby
Discover with Dr. Cool
8.7 GET ON AMAZON
7 NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit – Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit
JMW Sales, Inc.
8.5 GET ON AMAZON
8 NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Complete Rock Tumbler Kit with Durable Tumbler, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Educational Stem Science Kit NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit – Complete Rock Tumbler Kit with Durable Tumbler, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Educational Stem Science Kit
JMW Sales, Inc.
8.4 GET ON AMAZON
9 MJR Tumblers 12 LB Rock Tumbler Awarded Best High End, Most Versatile Run 5 Dif Barrel Combinations MJR Tumblers 12 LB Rock Tumbler Awarded Best High End, Most Versatile Run 5 Dif Barrel Combinations
MJR Tumblers
8.1 GET ON AMAZON
10 Leegol Electric Rock Tumbler Machine (Professional Double Barrel) Leegol Electric Rock Tumbler Machine (Professional Double Barrel)
Leegol Electric
7.9 GET ON AMAZON

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit – Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings, Learning Guide, Great Stem Science Kit

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings, Learning Guide, Great Stem Science Kit

    Features:

  • CREATE YOUR OWN GEMSTONES – Make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock tumbler kit makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
  • A TUMBLER THAT’S MADE TO LAST – Our high-quality tumblers are made with a durable motor that’s designed to last for years. The leakproof rubber barrel reduces sound, making it 75% quieter than other plastic models. An excellent STEM activity for kids.
  • A COMPLETE HOBBY TUMBLING KIT – Everything you need to create polished gemstones: the tumbler, four polishing grits, sifter, nine types of real rough gemstones, plus a detailed full-color learning guide. Makes a great gift for girls and boys!
  • EASY TO USE – Simple instructions and one-touch settings make rock tumbling fun and easy. Control the number of days for each tumbling cycle with the one-touch timer and automatic shutoff feature, set it and forget it! This is a great gift for kids.
  • HIGH-QUALITY EDUCATIONAL TOYS – National Geographic is proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service.

NATIONAL GEOGRAPHIC Rock Tumbler Kit-3LB Extra Large Capacity, 3LB Rough Gemstones 4 Polishing Grits, Jewelry Fastenings, an Educational STEM Science Kit

NATIONAL GEOGRAPHIC Rock Tumbler Kit-3LB Extra Large Capacity, 3LB Rough Gemstones 4 Polishing Grits, Jewelry Fastenings, an Educational STEM Science Kit

    Features:

  • CREATE YOUR OWN GEMSTONES – Rock tumbling is a hugely popular hobby for kids and adults! This professional rock tumbler makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
  • A TUMBLER THAT’S MADE TO LAST – The durable motor has time and speed control settings so you can set it, and forget it. An improved, leak-proof barrel features a stainless-steel lid is 75% quieter overall than plastic tumbler barrels.
  • ALL-IN-ONE TUMBLING KIT – This kit has everything you need and then some! You get three pounds of rough rocks with nine different types of gemstones inside, five jewelry fastenings, grit, a strainer, and our innovative new GemFoam rock polisher.
  • USE GEMFOAM FOR DAZZLING RESULTS – This rock tumbler kit stands apart from others thanks to our new, reusable GemFoam rock polisher! Add GemFoam and water to the barrel after your final tumbling stage and your gems will have incredible shine!
  • SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.

Advanced Professional Rock Tumbler Kit – with Digital 9-day Polishing timer & 3 speed settings – Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids all ages : Geology Toy

Advanced Professional Rock Tumbler Kit - with Digital 9-day Polishing timer & 3 speed settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Gift for Kids all ages : Geology Toy

    Features:

  • Turn rough rocks into polished gems: Discover and learn the fun process of rock tumbling with the Advanced Rock Tumbler. Pour in the rough stones and grit and let the machine do its job!
  • Complete kit: Includes: rock tumbler machine, low-noise barrel (1 lb. capacity), 4 grit packets, 1/2 lb. assorted rough rocks, mesh strainer, jewelry fasteners, gem storage bag, and an illustrated easy-to-follow instruction and learning guide booklet.
  • Powerful quality: Runs on a powerful heavy duty motor that will last for a very long time, and includes a leak-resistant barrel that runs quieter than the other brands.
  • Advanced features: Includes speed controls (providing more granular tumbling results), a 9-day timer (shuts off automatically when you desire), all displayed on beautiful LCD screens.
  • A fun and educational gift for all ages: It’s not often that a science project can be fun and engaging, but this kit achieves both! It fascinates children and adults as soon as they pull it out of the box and is a perfect STEM project for any age. It fosters a love for science, geology and mineralogy in a fun and exciting way.

NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit – 3lbs Gemstones of 9 Varieties Including Tiger’s Eye, Amethyst & Quartz – 4 Grades of Grit, Jewelry Fastenings & Detailed Learning Guide

NATIONAL GEOGRAPHIC Rock Tumbler Mega Refill Kit - 3lbs Gemstones of 9 Varieties Including Tiger

    Features:

  • GEMSTONES OF NINE VARIETIES: Tiger’s Eye, Amethyst, Aventurine, Rose Quartz, Red Jasper, Agate, Sodalite, Dalmatian Jasper, Black Jasper. (3lb in total)
  • FOUR GRADES OF GRIT: Coarse, Medium, Fine, Polish. Transform your stones from rough rocks to dazzling gemstones!
  • JEWELRY FASTENINGS: 1 Necklace, 1 set of Earrings, 1 Keychain, 1 Ring. Create custom jewelry from your newly polished gemstones!
  • LEARNING GUIDE: Our learning guide will teach you all about these unique gemstone specimens and includes many amazing and fascinating facts
  • SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you

Professional Advanced Rock Tumbler Kit, include Rough Gemstones, 4 Polishing Grits, with 3 Speed Settings and Digital 9-Day Timer

Professional Advanced Rock Tumbler Kit, include Rough Gemstones, 4 Polishing Grits, with 3 Speed Settings and Digital 9-Day Timer

    Features:

  • COMPLETE ROCK TUMBLING KIT – Everything you need to create polished gemstones: tumbler, low-noise barrel, half pound of gemstones (9 different types), four polishing grits, sifter, jewelry fastenings, detailed full-color learning guide.
  • TURN ROUGH ROCKS INTO POLISHED GEMS – Make any stone sparkle and polish everyday rocks into dazzling gemstones! Simple operation and durable design.
  • DURABLE QUALITY – This high-quality tumbler has a powerful motor that will last for years. Noise reducing leak-proof rubber barrel with stainless steel lid.
  • EASY TO USE – digital 9-day timer (with automatic shutoff feature), 3 speed settings, beautiful LCD screen.
  • EDUCATIONAL AND FUN GIFT FOR ALL AGES – Rock tumbling is a fun activity for children of all ages and promotes an interest in geology and science. Exquisite packaging, fashionable appearance. If you need more belts or other accessories, please contact our customer service. We will send it to you for free.

NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit – Rock Polisher for Kids and Adults, Complete Rock Tumbler Kit, Durable Leak-Proof Tumbler, Rocks, Grit, and 5 Jewelry Fastenings, A Great STEM Hobby

NATIONAL GEOGRAPHIC Starter Rock Tumbler Kit - Rock Polisher for Kids and Adults, Complete Rock Tumbler Kit, Durable Leak-Proof Tumbler, Rocks, Grit, and 5 Jewelry Fastenings, A Great STEM Hobby

    Features:

  • CREATE YOUR OWN GEMSTONES – Rock tumbling is a hugely popular hobby for kids and adults! This starter rock tumbler makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
  • A TUMBLER THAT’S MADE TO LAST – The durable motor allows you to tumble multiple batches of rocks. An improved, leak-proof barrel is lined with rubber for quieter operation while tumbling on the sturdy tumbler base.
  • ALL-IN-ONE TUMBLING KIT – This kit has everything you need and then some! You get ½ a pound of rough rocks with nine different types of gemstones inside, five jewelry fastenings, and our four-stage rock polishing grit.
  • EASY TO USE AND EDUCATIONAL – Detailed tumbler instructions lead you step-by-step through the rock tumbling process, A full-color learning guide details how rocks are naturally polished and has fascinating facts about the gemstones in the kit.
  • SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit – Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit

    Features:

  • CREATE YOUR OWN GEMSTONES – Make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock tumbler kit makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
  • A TUMBLER THAT’S MADE TO LAST – Our high-quality tumblers are made with a durable motor that’s designed to last for years. The leakproof rubber barrel reduces sound, making it 75% quieter than other plastic models. Makes an excellent STEM gift or activity for girls and boys!
  • ALL-IN-ONE TUMBLING KIT – This complete kit has everything you need to create polished gemstones. In addition to the tumbler, four polishing grits, sifter, and rough gemstones, this bundle includes refill packs with 1lb each of rough gemstones and rough jasper. Learn all about the gemstones in your kit with the detailed, full-color learning guide.
  • EASY TO USE – Simple instructions and one-touch settings make rock tumbling fun and easy. Control the number of days for each tumbling cycle with the one-touch timer and automatic shutoff feature, so you can set it and forget it. This is a great gift for kids!
  • SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit – Complete Rock Tumbler Kit with Durable Tumbler, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Educational Stem Science Kit

NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Complete Rock Tumbler Kit with Durable Tumbler, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Educational Stem Science Kit

    Features:

  • CREATE YOUR OWN GEMSTONES – Rock tumbling is a hugely popular hobby for kids and adults! This robust rock tumbler makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.
  • A TUMBLER THAT’S MADE TO LAST – The durable motor has time and speed control settings so you can set it, and forget it. An improved, leak-proof barrel features a stainless-steel lid.
  • ALL-IN-ONE TUMBLING KIT – You get one pound of rough rocks with nine different types of gemstones inside, five jewelry fastenings, tumbler grit, a strainer, and our innovative new GemFoam polishing foam.
  • USE GEMFOAM FOR DAZZLING RESULTS – This rock tumbler kit stands apart from others thanks to our new, reusable GemFoam rock polisher! Add GemFoam and water to the barrel after your final tumbling stage and your gems will have incredible shine!
  • SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.

MJR Tumblers 12 LB Rock Tumbler Awarded Best High End, Most Versatile Run 5 Dif Barrel Combinations

MJR Tumblers 12 LB Rock Tumbler Awarded Best High End, Most Versatile Run 5 Dif Barrel Combinations

    Features:

  • Award winning BEST HIGH END TUMBLER for 2019. MOST VERSATILE on the market with 5 different barrel combinations possible!
  • Heavy duty 16 gauge welded steel frame, powder coated to be scratch and corrosion resistant. Rubber coated 3/8″ diameter steel rollers
  • Industrial duty flanged STAINLESS STEEL BALL BEARINGS (no plastic sleeve bearings to wear out)
  • Heavy duty motor with automatic thermo overload protection – intended for continuous use
  • Commercial grade barrel that seals to be water and air tight, tapered neck for easy loading and unloading

Leegol Electric Rock Tumbler Machine (Professional Double Barrel)

Leegol Electric Rock Tumbler Machine (Professional Double Barrel)

    Features:

  • Power Adapter: 120V/60Hz Barrel Capacity: 2 × 3LB
  • Packaging List: Includes tumbler, 2×0.5lbs of walnut shell media, synchronous belt, and instructions
  • Professional Features: The durable motor allows you to tumble multiple batches of rocks. An improved, leak-proof barrel is lined with rubber for quieter operation
  • Easy to Use: Detailed tumbler instructions lead you step-by-step through the rock tumbling process
  • Satisfaction Guaranteed: With a manufacturer warranty you can be sure you will get a quality gift.If you get a poor rock tumbler,contact with us,we will supply a new one.

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