The Best Rock Tumbler For Adults of 2023

Power Adapter: 120V/60Hz Barrel Capacity: 2 × 3LB

Packaging List: Includes tumbler, 2×0.5lbs of walnut shell media, five v-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

CREATE YOUR OWN GEMSTONES - Make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock polisher 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.

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.

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 plastic barrel that seals to be water and air tight, tapered neck for easy loading and unloading

Packaging List: Includes machine, 0.5lbs of walnut shell media, five v-belt, and instructions.

Professional Features: This high-quality polisher has a powerful motor to ensure a smooth finish!

Perfect for Beginners: Easy to use, to polish rocks or metal parts, add a media and let the machine do all the work for you.

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.

✅EASY TO CREATE YOUR GEMSTONES - Rock tumblers for kids are a fantastic and exciting activity for children of all ages. Easy operation and durable design. Learn the fun process of rock tumbling with this beginners/professional rock stone tumbler. It will turn rough rocks into beautifully polished gemstones. It is a hugely popular hobby for kids and adults!

✅A ROCK TUMBLER MACHINE MADE TO LAST – Our high-quality tumblers are made with a metal case and durable motor that’s designed to last for years. The 2X3LB leakproof rubber barrel reduces sound, making it quieter than other plastic models. Excellent STEM activity for adults/kids.

✅COMPLETE ROCK TUMBLER KIT –Rock tumbler for adults, Includes rock stone tumbler base, Replacement tumbler belt(5pc), 6-pound capacity barrel for grinding more Stones,2 bag assorted gems 2Lb(920g)，8 bags polishing grits for 4 Steps,5 jewelry settings and 1 operating detailed instruction guide. That will ensure a great finished product.

✅6LB ROCK TUMBLER EASY TO USE – Simple hobby rock tumbler kit 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 an ideal Christmas gift for kids.

✅A FUN AND EDUCATIONAL GIFT: Rough gemstones for a rock tumbler, Make any stone sparkle, and polish everyday rocks into dazzling gemstones! It fascinates children and adults when they open the box. It fosters a love for science, geology, and mineralogy in a fun and exciting way.

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.

This all-in-one tumbling kit has everything you need and then some! 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!

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.

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.

heavy-duty, professional-quality tumbler

15lb. capacity

Continuous-duty motor is fan-cooled, with overload protection

Steel hexagon barrel with removable rubber lining for long, efficient, and quiet operation

5-year guarantee on barrel and liner