Baer T4 caliper rebuild kit, services 1 caliper. Includes: (4) Weather Seals (2 x 1.750" & 2 x 1.375"), (4) Pressure Seals (2 x 1.750" & 2 x 1.375"), (2) Pad Abutment Clips & (1) Bleeder Cap. If unsure what caliper you have, please contact our tech department at 602-233-1411 for assistance