An improved, leak-proof barrel features a stainless-steel lid is 75% quieter overall than plastic tumbler barrels. A TUMBLER THAT'S MADE TO LAST - The durable motor has time and speed control settings so you can set it, and forget it.CREATE YOUR OWN GEMSTONES - Rock tumbling is a hugely popular hobby for kids and adults! This professional rock polisher makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design.If your experience is anything less than extraordinary, let us know so we can make it right for you The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun. Add GemFoam and water to the barrel after your final tumbling stage and your gems will have incredible shine This rock tumbler kit stands apart from others thanks to our new, reusable GemFoam rock polisher. 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. This all-in-one tumbling kit has everything you need and then some.The leak-proof barrel features a stainless-steel lid. The motor has tumbling time control settings so you can set it and forget it. 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 Rock tumbling is a hugely popular hobby for kids and adults.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.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.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.assorted rough rocks, mesh strainer, jewelry fasteners, gem storage bag, and an illustrated easy-to-follow instruction and learning guide booklet. Complete kit: Includes: rock tumbler machine, low-noise barrel (1 lb.Pour in the rough stones and grit and let the machine do its job! Turn rough rocks into polished gems: Discover and learn the fun process of rock tumbling with the Advanced Rock Tumbler.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.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. EASY TO USE – Simple instructions and one-touch settings make rock tumbling fun and easy.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.The leakproof rubber barrel reduces sound, making it 75% quieter than other plastic models. A TUMBLER THAT'S MADE TO LAST – Our high-quality tumblers are made with a durable motor that’s designed to last for years. ![]()
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