Change rough stones into beautiful, polished gemstones with this U.L.-listed heavy duty rock tumbler. Make earrings, rings, necklaces with the same process used by the oceans for millions of years! Includes rock tumbler, transformer, a bag of rock, a bag of accessories, a bag of coarse grinding powder, a bag of fine grinding powder, a bag of polishing powder, a bag of final polishing power, glue, and instructions. 10-piece set Ages 8+ Imported Material & Care Plastic Spot clean only