This is a replacement Kodiak Stainless Steel Caliper 250 for Kodiak 7,000lb -8,000lb Disc Brake Kits. Kodiaks Stainless Steel Calipers feature a stainless steel 2 1/2" piston, stainless steel guide bolt sleeves, brass fittings, and stainless steel backed brake pads. Of course the casting is stainless steel as well. This is the highest quality and longest lasting trailer caliper available on the market. This Caliper will outfit both the Slip On Style of 8 Lug Brake Kits and the Integral Styles.