Fundamental Rockhound Products: TWO 4 Step Rock Tumbling GRIT KIT for tumble polishing rocks for 3 pound tumbler Single Use Refill TWO Single use kits for a 3 pound tumbler barrel. Each kit is enough to tumble 3 pounds of rock. Pre-measured packets of Coarse, Medium, and Fine silicon carbide grit plus Grit Saver and 1 packet tumble polish Instructions are included