Gemstone Polishing Kit: Rock tumbling is a hugely popular hobby for kids and adults alike! This professional rock tumbler is fun and easy to use, transforming rough rocks into beautifully polished gemstones thanks to its simple operation and durable design. This kit makes tumbling even easier, offering an interesting way to transform any raw stone and polish it into super shiny and beautiful gems. Timer Function: The durable motor features a timer setting, so you can configure it and not worry about forgetting. The 7-day digital timer (with automatic shut-off) lets you set and repeat cycles as needed. Creating your own beautiful gemstones takes time and patience, so this feature is essential. Size: 21 x 14.5 x 16.6 cm. DIY Fun: Children can collect various stones outdoors and transform them into beautiful and attractive gems. This process allows kids to experience the joy of creation, enjoy a sense of accomplishment, and foster their curiosity and observation skills. Detailed instructions guide you step-by-step through the tumbling process, including fascinating facts about the gemstones in the set. Fun Gifts for All Ages: Rock tumbling isn't just for kids; it's also a great hobby for adults, making it a fun and high-quality craft tool for children and families. It's the perfect gift for Christmas or Children's Day. A rock tumbler can enhance children's interest in geography and science while developing their patience. Easy to Use: This rock polishing kit is easy to use and perfect for beginners. The instruction manual includes detailed instructions on the rough stone grinding process. Package Includes: 1 x Rock Polisher, 1 x Raw Stone (in the roller), 4 types x (coarse grinding, fine grinding, polishing, final polishing) polishing powder, 2 x Ring Rings, 1 x Necklace + Gemstone Holder, 1 x Keychain Chain, 1 x Leather Strap (replacement), 1 x Power Cord with Euro Plug, 1 x English Instructions.