For 2012-2014 BMW 328i,320i,228i Front Rear eLine Black Drill Slot Brake Rotors Package Includes 4 Performance Brake Rotors Precision Drilled Holes For Maximum Heat Dissipation Countersunk To Reduce Heat Stress And Cracks Diamond Slotted To Increase Brake Pads Bite Diamond Slots Acts As A Rotor Wear Indicator