Baer Sport 1-piece drilled and slotted rotors are made of durable, machine-cast steel, then mill-balanced to minimize vibration and noise while promoting even wear. The cross-drilled and slotted holes help flush moisture, gases, and brake dust away from your brake pads. For both durability and style, the rotor is finished with sleek zinc plating. The vented vane design also allows the rotor to cool efficiently, allowing you to brake safely even in extreme conditions. Designed as a direct fit replacement, no special tools are required for installation.