StopTech 127.62055R Sportstop Slotted and Drilled Brake Rotor Rotor Construction:Vented Rotor Style:Cross-drilled and slotted surface Rotor Outside Diameter (in):11.930 in. Rotor Material:Iron Rotor Finish:Black E-coat StopTech drilled and slotted brake rotors are engineered to look good and perform at the same time!