High performance road-specific pad inserts designed to fit all Shimano Road Systems. Compatible with Dura-Ace 7900, 7800, 7700, Ultegra 6500, 6600, 6700 and 105 5500, 5600 & 5700 brakes. Block compound formulated for use with standard rim braking surface. Exactly the same specification as originally supplied, ensuring consistent performance. Comes in a pack of 2 pads or 4 Pads (enough for front and rear calipers).