High performance, low noise semi-metallic compound mounted to a steel backing plate.Better heat dissipation, Ultimate brake Power.2 TIMES life than normal disc brake pads.With PPTA Fiber to Provide longer service time.Colour: BlackMaterial: ResinPackage Contents:4 pair x Bicycle Disc Brake PadsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.