1. Make any stone shine, polish everyday stones into dazzling nazz gems, easy to handle and designed to be durable, this electric scrub allows you to turn rough stones into fine gems, fun and easy. 2. The advanced grinder is manufactured with a long-lasting durable motor. The leak-proof rubber barrel reduces noise, making it 75% quieter than other plastic models. Beautiful handicrafts for children. While operating, children can experience the joy of labor and enjoy successful achievements, which can develop their curiosity and observation. 3. Our high-quality rock tumbler is made with high-quality electric motor, which can be used continuously and can work continuously for a long time. Also, the leak-proof rubber barrel with grinder has a good seal and is quieter than others 4. Our Electric Gem Grinder is a fun and educational gem-loving toy for all ages, kids and adults alike. This is definitely the perfect gift for Christmas, Children's Day. 5. You can get a complete rock tumbler kit that includes all the tools you need to polish a stone: rock tumbler, a pound of gemstones (9 different types), four polishing grits, a jewelry fix, a tube of glue and a detailed full Color Study Guide Name: Electric Gemstone Grinder Kit Material: ABS + Metal Voltage: 220V Frequency: 50Hz Plug: US plug, EU plug Product size: 21×14.5×16.6CM/8.3*5.7*6.5in Packing size: 26.5×21.5×11CM/10.4*8.5*4.3inch Single product weight: 1586G Package includes: 1 * Gem grinder 1 *Accessories set Notes: 1. Due to manual measurement and slight color variation, please allow 1-3cm (0.4-1.18 inches) difference to suit different display settings. 2. Due to light and screen differences, the color of the item may be slightly different from the picture. Please understand that.