KomeStone K1 Pro Rock Tumbler – Cutting-Edge Technology for Gemstone Polishing Key Features: Brushless Motor: The first-ever rock tumbler with a brushless motor, providing over 20,000 hours of service life for long-lasting use. Rock Polishing Fun: Transform rough rocks into smooth, polished gemstones with each cycle. It's a great educational tool for kids to learn about patience and geology, or for adults interested in jewelry making. 2023 New Upgrade: Built-in LCD Screen with a 9-day timer display for easy monitoring. 3 Speed Controls to adjust the tumbling process to your needs. Pause & Resume Function for more control over your polishing process. Extra-Large 2.5 LB Capacity: The tumbler features a soft rubber barrel that’s 75% quieter than traditional plastic barrels, making it less disruptive while tumbling. The larger barrel capacity allows for more rocks to be polished at once. Quiet Operation: The soft rubber barrel absorbs impact, making the tumbler much quieter than many others on the market, comparable to the noise of a running dishwasher. Complete Kit: Comes with everything you need to get started, including: The tumbler machine and barrel. 1 lb of rough rocks to begin tumbling. 4 polishing grits, 6 belts, and ceramic filler media (a special gift). A full-color instruction book, so even beginners (or kids) can use it with ease. NZ Stock: Ready for immediate dispatch, ensuring fast delivery.