Raybestos PGD323AC Professional Grade Ceramic Disc Brake Pad Set Specifically engineered to provide premium performance for everyday driving conditions Application specific semi-metallic, ceramic and organic friction materials with First To Market coverage Shim materials quiet noise, vibration and harshness Consistent fit, form and function including slots and chamfers when designed by Original Equipment Abutment clips and integral electronic wear sensors included where applicable Premium attached shims for unrivaled noise damping and durability Application specific slots and chamfers supress noise Vehicle specific friction formulations Electronic wear sensors and loose hardware Optimized brake performance