Warp Brothers 12-4CH10B Black Plastic SheetingWarp Brothers 12-4CH10B Black Plastic Sheeting Features:; The strength and durability of plastic sheet is governed by its thickness; 3CH10-B: 3 millimeter, 10" x 25"; 12-4C10B: 4 millimeter, 10" x 25"; 4CH15-B: 4 millimeter, 15" x 25"; 4CH20-B: 4 millimeter, 20" x 25"; 6CH10-B: 6 millimeter, 10" x 25"; 6CH15-B: 6 millimeter, 15" x 25"; 6CH20-B: 6 millimeter, 20" x 25"