This kit will service one caliper. Two kits required to service 1 pair of calipers. 50 YEARS EXPERIENCE Frenkit is the European market leader in brake hardware with customers in over 70 countries, including OEMs, top aftermarket distributors and caliper remanufacturers. IN-HOUSE EXPERTISE Rebuild your calipers with high quality components from Frenkit. This high quality kit is designed to restore the performance and reliability of your vehicle's brake calipers. Frenkit, S.L. is a company which specialises in the manufacture of brake components for passenger cars, motorcycles and light vehicles . All its products are manufactured according to meet and exceed OEM specifications and applying a certified quality management system in compliance with the requirements of ISO 9001 ensuring a precise fit and long-lasting durability. 28mm Porsche 911 (993) 3.6 Turbo 2-pot Rear Caliper Rebuild Kit Included are the following components 28mm Dust Boot, Quantity 4 28mm Pressure Seal, Quantity 4 28mm Piston, Quantity 4 Caliper internal crossover port / channel o-ring seal, Quantity 2 Bleed Screw, Quantity 2 Bleeder Cap, Quantity 2 Assembly Grease, Quantity 1 This kit services one (1) caliper.