2005-2010 Arctic Cat 650 XT Prowler Semi-metallic Front & Rear Brake Pads 3 Sets of Brand New High Quality Brake Pads Enough To Replace Front & 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