A 4 step rock tumbler grit kit for 40 pound tumblers. The kit consists of 40 ounces of 60/90 silicon carbide coarse grit 40 ounces of 120/220 silicon carbide medium grit, 20 ounces of 400F silicon carbide fine grit, and 20 ounces of micro alumina polish. These kits are ideally suited for rotary rock tumbler operation. These kits are shipped free via USPS Priority Mail to all USA ZIP codes. The foreign shipping weight is 8-1/2 pounds. Pictured in natural sunlight.