Rock Tumbler Kit for Kids & Adults, Includes 2 Belts, Bag of Rough Stones, Coarse & Fine Grinding Polishing Grits for DIY Projects

【CREATE YOUR OWN GEMSTONES】：Rock Tumbler kit features simple operation and durable design—this rock tumbler makes it fun and easy to turn rough rocks into beautifully polished gemstones. 💝【ROCK TUMBLER KIT】：Rock tumbler is a great STEM toy for kids to create their favorite gems by themselves. Rock polisher can boost children's interest in geography and science, while exercising their patience. This rock tumbler science toy is the perfect birthday and Christmas gift for boys and girls. 💕【ROCK TUMBLER FOR ADULTS】：You’ll get a complete rock tumbler set, including all tools needed for stone polishing: a rock tumbler, 4 pcs polishing grits, various rough rocks, jewelry fastenings, a tube of glue, and a detailed instruction manual. 🌈【Durable Rock Tumblers】：Use the button to set any stone grinding time (1-7 days), or stop and resume work with one button. After the set working time ends, the stone grinder stops automatically. Any questions can be answered in the detailed study guide booklet, which fully explains how to turn rough stones into beautifully polished gems. 💖【ROCK TUMBLER GRIT - THE PERFECT GIFT FOR ALL AGES】Our rock tumbler science kit is a fun, educational gem hobby toy for all ages. It contains everything needed to make gemstones, rock collection gem jewelry, and gem decorations. Great gift for kids & adults on birthdays or Christmas—an excellent STEM activity for adults and kids aged 6 and up.