About Labwork: Labwork is an Auto Parts One-Stop Solution brand of more than 10 years, which specializes in providing global customers with top-notched quality automotive parts & accessories . If you need any auto parts, its enough to come to Labwork. Features: Piston Size: 1.5 in. / 38.1 mm Piston Material: Steel Pads Included: No Inlet Port Size: M10x1-6H Electric: No Copper Washers: Included Color: Silver Caliper Finish: Zinc Plated Brake Piston Count: 1 Brake Caliper Spring: No Brake Caliper Bracket Included: Yes Bleeder Port Size: M10x1.25-6H Banjo Bolt Included: Yes Fitment: .