The Dura-Ace R55C4 (BR-9000) brake shoe set includes pads and holders for one wheel so order two sets for one bike. The included pads are the all-weather type for aluminum braking surfaces.
This brake shoe set has the 9000 black anodized finish and build quality but will retrofit to almost other Shimano calipers and many other brands too. These are perfect for replacing missing shoes. Many riders get a spare set to use with carbon specific brake pads when going back and forth between aluminum and carbon rims since it is a little faster to replace the whole shoe than just the pad.