Bosch BE591H Blue Disc Brake Pad Set with Hardware Advanced platform specific friction material formulations (NAO-Ceramic and semi-metallic formulas) for optimal performance Superior noise dampening provided by OE-style multi-layer shims Rust inhibitive coating prevents rust Hardware kit and synthetic lubricant included; this helps reduce resistance on sliding contact points and restores like-new brake operation Slots and chamfers match OE design for quick and easy installation