CREATE YOUR OWN GEMSTONES - Rock tumbling is a hugely popular hobby for kids and adults! This robust rock polisher 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 1/2 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 tumbling 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! | HIGH-QUALITY EDUCATIONAL TOYS - We proudly make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience isn't stellar, we'll make it right!