Graphite Ceramic D914.22 Police Formula (Front) Disc Brake Pad Set (4 Pads) with Hardware Police formula passed FMVSS 135 OEM the Highest Test for Performance and Safety. Graphite is a dry lubricant able to reduce friction between two surfaces sliding against each. Ceramic fibers provide stable and predictable friction characteristics. Combination allows for low rotor wear and less noise than semi-metallic formulas. HARDWARE INCLUDED: Carlson Brake Pad Installation Kit for maximum performance. RECOMMENDED LUBRICANT: Permatex #09973, Ceramic Extreme Brake Parts Lubricant, 4g Pouch.