Stone Grinding Kit for Kids and Adults, Professional Stone Polisher with Electronic Motor. Contents 1 Stone Grinder, 1 Roller, 1 Bag of Stones Optional Style and Color Inside the Drum, 1 Power Adapter, 4 Grinding Powder, 1 Glue, 1 Wheel Strap, 1 Accessory Bag 1 Large Key Ring, 1 Small Key Ring, 1 Necklace, 2 Rings, 3 Stone Mounts, 2 Needles, 1 User Manual. Highlights Grind Your Own Gemstones Grinding stones is a very popular hobby for kids and adults. This professional stone grinder makes grinding easier in a fun way and turns rough stones into beautifully polished gems. Easy to Use You can set any grinding time from 17 days with one button, or you can stop and continue working with one button. After the set working time is finished, the stone grinder will stop automatically. The leakproof rubber bucket reduces noise, and the overall noise level is 75 lower than the plastic bucket. Educational and scientific toys Children can collect all kinds of rocks outdoors and grind them into attractive diamonds with the machine. During the grinding process, they can cultivate their curiosity and observation skills, and children can also eperience the joy of work. Durable polishing machine Our polishing machine uses a highquality motor, which is durable and can work continuously for a long time. Suitable for childrens DIY activities. Perfect gift This is a scientific education kit for all genders and ages, developing a love of science, geology and mineralogy in a fun and eciting way. Perfect for birthdays, Christmas and other holidays. Detailed Name Stone Grinding Kit Product Material ABS, Metal Product Size 211 4.51 6.6 cm Applicable Age 8 Voltage 100240V Color Black Notes 1. Due to the difference between the light and screen settings, the items color may be slightly different from the pictures. 2. Please allow slight measurement deviations due to manual measurement. Grind Your Own Gemstones Grinding stones is a very popular hobby for children and adults. This professional stone grinder makes grinding easier in a fun way and turns rough stones into beautifully polished gems. Easy to Use You can set any grinding time from 17 days with one button, or you can stop and continue working with one button. After the set working time is finished, the stone grinder will stop automatically. The leakproof rubber bucket reduces noise, and the overall noise level is 75 lower than the plastic bucket. Educational and scientific toys Children can collect all kinds of rocks outdoors and grind them into attractive diamonds with the machine. During the grinding process, they can cultivate their curiosity and observation skills, and children can also eperience the joy of work. Durable polishing machine Our polishing machine uses a highquality motor, which is durable and can work continuously for a long time. Suitable for childrens DIY activities. Perfect gift This is a scientific education kit for all genders and ages that develops a love of science, geology and mineralogy in a fun and eciting way. Perfect for birthdays, Christmas and other holidays. Our products are made of the highest quality materials and are designed to give you the best possible user eperience.