Front and Rear Semi-metallic Brake Pads for Yamaha YFM 660 Raptor 2001 2002 2003 2004 2005 3 Sets of Brand New High Quality Brake Pads Enough to replace FRONT AND REAR calipers These are Semi-metallic brake pads Semi-metallic compound works well in all conditions Semi Metallic Brake Pads are for leisure/sport use and provide the lowest heat generation, which made from a resin material with metal (copper, brass) chips inclusions