Campagnolo carbon brake pad inserts supplied in a pack of 4 for Shimano/tektro/SRAM e.t.c brake shoe holder and brakes and Campagnolo brake shoe holders and brakes.
These are the best carbon brake pads I have tried, they give predicable braking performance and they even work in the wet and I mean they work in biblical downpours.
These are the only pads I recommend with the carbon rims I use for the BORG wheels as they do not wear the brake track quickly and work well in the wet and dry.
These pads are also perfect for Campagnolo carbon rimmed wheels.
Campagnolo pad compatibility table