Fundamental Rockhound Products: Premium 4 Step Rock Tumbling GRIT KIT with 1 lb Mixed Ceramic Media - Enough to Polish up to 10 pounds of Rock! Refill High Quality Rock Tumbling Grit Kit to tumble up to 10 pounds of rock. You will receive 1 pound coarse grit, 1 pound medium grit, 1 pound fine grit, 1.2 oz grit saver, and 1/2 pound Aluminum Oxide tumble polish, 1 lb mixed Ceramic Tumbling Media, plus instructions. All supplies are packaged in heavy-duty resealable zipper bags. Ceramic Media is used for cushioning delicate stones or as filler. You can use the same Ceramics in all stages. Instructions and Helpful tips are included. This is an American Made product, Made in Colorado