WinHand Rock Tumbler Kit for Adults and Kids - 2.5LB Capacity with Noise Reduction Cover, Speed & Timer Control, Includes 4 Polishing Grits, Rough Gemstones etc, Science Gift for All Ages. (blue) - WinHand-03

• NEW UPGRADE DUAL NOISE-CANCELLING FUNCTIONS - WinHand professional rock tumbler has the biggest advantage: Noise Reduction! The rock polisher tumbler with cover is 40.6% quieter than others, and the tire rubber is 75% quieter than plastic barrels. EASY TO USE & EDUCATION - Digital 2-Speed setting & 7-day timer, There are 3 processes in Setting for grinding stones(according to instructions). The rock tumbler with color printing instructions leads you to operate the tumbler machine step-by-step, telling you the fascinating story of the gemstones, which is a good material to read for your kids, A Great STEM Activity. DURABLE ROCK TUMBLER - The upgraded leak-proof barrel is lined with rubber designed for staying sturdy and quiet. This is a high-quality rock tumbler that lasts for many years. MAKE YOUR OWN GEMSTONES - Enjoying the tumbling process! There is an entire process that rough rocks go through in order to become shiny stones. It is the time you have wasted on your stone that makes your stone so important! ROCK TUMBLER KIT - The rock tumbler set comes with everything you need, including a 2.5LB Large capacity tumbler barrel(It's recommended to tumble not more than 0.9lb rocks each time. Make sure its polishing effects.), 2 bags of rough gemstones, 4 polishing grits, 2 polishing sponge blocks, 1 Filter, 1 Bags of accessories, 1 Power adapter, and a detailed learning guide. A Perfect gift for adults and Kids!, Manufacturer: WinHand