A fun, educational STEM toy for kids, this rock tumbler kit is great for the whole family! Your kids will enjoy collecting and polishing gems while learning how gemstones are made. With this set, youll receive 9 rough gemstones a full pouch of rough gems and polishing grits, a noise reduction cover, storage bag and more!

• Make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock tumbler kit makes it fun and easy to turn rough rocks into beautifully polished gemstones.
• Ages 8+