Kit Includes: 1 lb. Rought rocks, four 0.7 oz Polishing grits, 5 jewelry settings and 1 information guide JEWELRY FASTENINGS: 1 Necklace, 1 set of Earrings, 1 Keychain, 1 Ring. Create custom jewelry from your newly polished gemstones! FOUR GRADES OF GRIT: Coarse, Medium, Fine, Polish. Transform your stones from rough rocks to dazzling gemstones! Expanded assortment available online. This item not carried in store. National Geographic's Rock Tumbler Refill Pack featuring Madagascar mix! Turn rough rocks into polished gems! This rock tumbler refill kit contains eight different types of semi-precious jasper stones from around the world! Rock tumbler not included.