Create your own gems Rock tumbling is a very popular hobby for children and adults. This professional rock tumbler makes it fun and easy to turn rough stones into beautifully polished gems thanks to its simple operation and durable design. A tumbler that lasts the durable motor has time and speed settings so you can set it and forget it. An improved spill-proof stem features a stainless steel lid and is 75% quieter overall than plastic tumblers. All-in-one tumbling set this set has everything you need and then some. You get 453 grams of rough stones with nine different types of gemstones inside, five jewellery attachments, tumbler grit, a strainer and our innovative new GemFoam Rock Polisher. Use Gemfoam for amazing results this stone tumbler set stands out from the rest, thanks to the new reusable GemFoam polisher. Add GemFoam and water to the barrel after your final tumbling and your gems will have incredible shine.