These EBC Brakes are made from the material Kevlar® fibre based brake compound enhanced with ceramic particles. If you have previously tried EBC redstuff (pre-ceramic compound) this material is light years ahead. It lasts longer, it brakes better and is quieter. Being a hard wearing pad, bed-in times can be as long as 1000 miles and drivers must be patient until the pad takes up the shape of their disc (brake rotor).