Alligator Semi-Metallic Disc Pads. Features: Replacement disc pads available in organic or more durable semi-metallic compound Both offer excellent braking performance in wet or dry conditions Set for one caliper, spring included where necessary Semi-Metallic compound Compatibility: Shimano Deore: Shimano 515/525/575/C501/C601, Also fits Shimano M375/415/416/446/465/475/485/486/495, and RST D-Power mech Shimano XTR: Shimano M965/966/975/900/765/775, Also fits Shimano M800/776/665/601/595/585/545/535/505, T665/605, S500/501 Shimano Saint/Zee: Shimano Saint M820/810, Zee M640 SRAM Red/Force/CX1: SRAM Red22, Force22, Force 1, Rival 22, Rival 1, CX1, 700 B1 HRD, HRR