●Made of aluminium and ceramic, durable and practical to use. ●The replacement pad is compatible with Shimano series which use the brake pads L02A, L03A, L04A, L05A, L04C, K02S, K04S. ●These pads are compatible with the following calipers: Compatible with Dura-ACE R9150 series, for ULTEGRA, for R8050 series, 105 R7000 series, TIAGRA 4700 series, METREA U5000 series, for GRX 11 speed, for GRX10 speed off-road/road disc brakes. BR-R9170, BR-R8070, BR-R7070, BR-RS805, BR-RS505, BR-RS405, BR-RS305, BR-U5000 ●It has good damping effect and braking performance. High temperature resistance, wear resistance and short shrinkage time. ●The design of heat dissipation ribs and multi-directional air ducts improves heat dissipation performance.