10 Best Rock Tumbler of December 2025

• MAKE ANY STONE SPARKLE - Polish everyday rocks into dazzling gemstones
• ENHANCE YOUR ROCK COLLECTION - Or start a new one! Makes all rocks shine like professionally polished stones
• EVERYTHING IS INCLUDED - This kit includes the tumbler, four polishing grits, sifter, learning guide PLUS nine types of real rough gemstones
• EASY TO USE - Simple instructions, one-touch settings and an automatic shutoff timer
• SATISFACTION GUARANTEE - For 131 years, National Geographic has been committed to providing fun and fascinating educational opportunities for children and stands behind this Rock Tumbler with a two-year warranty

NATIONAL GEOGRAPHIC

• Packaging List: Includes tumbler, 2 X 0.5lbs of walnut shell media, five v-belt, and instructions.
• Power Adapter: 120V/60Hz Barrel Capacity: 2×3LB (Rubber tumbler barrel allows for quieter operation).
• Professional Features: This high-quality tumbler has a powerful motor, the design allows it to run for days at a time to ensure a smooth finish!
• Perfect for Beginners: Easy to use, to polish rocks or metal parts, simply add a media and let the self-rotating tumbler do all the work for you.
• 100% 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.

Leegol Electric

• HIGH QUALITY – This rock polisher grit refill pack comes with enough high-quality silicon carbide grit to put a dazzling polish on approximately 8-10 lbs. of rocks, gems, glass, and more
• EASY TO USE FOUR-STAGE ROCK GRIT - The first rock tumbling grit stage provides initial shaping, the second smooths rock surfaces, the third pre-polishes rocks, and the fourth provides the final polish
• COMPATIBLE WITH ALL TUMBLERS - This complete 4-step rock tumbler grit refill kit works with all rock tumblers. For best results, use with National Geographic Rock Tumblers and rock tumbling supplies
• EASY TO MEASURE AND STORE - Each rock tumbling grit stage is packaged in a wide-mouth container with secure, screw-top closure
• SATISFACTION GUARANTEED – The National Geographic STEM series provides high-quality products 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

• COMPLETE ROCK TUMBLING MEDIUM KIT: 3.5 lbs. 4-step grit set and poly plastic pellets, to polish any rock. Packaged in easy-to-use-and-store bottles.
• INCLUDES: Step #1 Coarse Grit (1 lb.), Step #2 Medium Grit (1 lb.), Step #3 Pre-polish Grit (1/2 lb.), Step #4 Grit (1/2 lb), Polypropylene Plastic Poly Filler Pellets (1/2 lb.), Instruction Guide.
• COMPATIBLE WITH ALL ROCK TUMBLERS: Can be used in tumblers from any brand: Dan&Darci, Elenco, Lortone, National Geographic, Smithsonian, Thumler and more.
• EASY TO USE: Includes a clear instruction guide on how to use the grits and plastic pellets.
• 😊 100% SATISFACTION GUARANTEED: Love it, or your money back!  If you are not satisfied with the kit, we'll refund you 100% of the money, no questions asked.

Dan&Darci

• Packaging List: Includes tumbler, 0.5lbs of walnut shell media, five v-belt, and instructions.
• Power Adapter: 120V/60Hz Barrel Capacity: 3LB (Rubber tumbler barrel allows for quieter operation).
• Professional Features: This high-quality tumbler has a powerful motor, the design allows it to run for days at a time to ensure a smooth finish!
• Perfect for Beginners: Easy to use, to polish rocks or metal parts, simply add a media and let the self-rotating tumbler do all the work for you.
• 100% 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.

Leegol Electric

• 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 one pound of rough rocks with nine different types of gemstones inside, five jewelry fastenings, tumbler 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

NATIONAL GEOGRAPHIC

• Create stunning gems - transform ordinary rocks into beautifully polished gemstones with this professional rock tumbling machine from National Geographic
• A complete hobby kit - includes our Pro series tumbler, 1lb of rough gemstones, four polishing grits, jewelry fastenings, information guide, and instructions
• Built to Last - This powerhouse machine will last for years and features a 2lb leak-proof rubber barrel which makes less noise than other tumblers
• Professional features - includes a speed control and shutoff timer for faster tumbling times and better polishing results
• Respected quality - this premium tumbler comes with National Geographic’s 100% satisfaction guarantee and a 2-year warranty

NATIONAL GEOGRAPHIC

• MAKE ANY STONE SPARKLE and polish everyday rocks into dazzling gemstones
• ENHANCE YOUR ROCK COLLECTION or start a new one! Makes all rocks shine like professionally polished stones
• EVERYTHING IS INCLUDED in the kit; tumbler, four polishing grits, a sifter, jewelry settings, a full-color 8 page learning guide and nine types of REAL rough gemstones
• EASY TO USE for Rock Hounds of all ages and skill levels; plug it in and polishing begins
• 100% SATISFACTION GUARANTEED - For 129 years, National Geographic has been committed to providing fun and fascinating educational opportunities for children and stands behind this Rock Tumbler with a two-year warranty

NATIONAL GEOGRAPHIC

• 💎 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.
• ⚡ 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.

Dan&Darci

• COMPLETE KIT - 4 Step grit pack and ceramic filler for use in 15 lb. tumbler or five 3 lb. tumbles.
• CONTAINS - 1 lb. 60 Coarse Silicon Carbide Grit, 1 lb. 180/220 Medium Silicon Carbide, Grit, ½ lb. 500 Fine Silicone Carbide, ½ lb 1200 Aluminum Oxide Polish and 1.5 lbs. non-abrasive ceramic filler cylinders. No need to keep ceramic separate for each stage – rinse and use the same batch through all the tumbling stages.
• STRONG SPILL-RESISTANT PACKAGING - Packaged in durable, re-closable seal bags to prevent messy spills and to safely store unused product for later.
• MADE IN THE USA – Premium materials.
• BEGINNER FRIENDLY - Complete instructions included. 100% satisfaction guarantee on all our products.

Polly Plastics