Full Kit Gold Drilled Slotted Brake Rotors & Ceramic Brake Pads Optima,Sonata Package Includes 4 Brake Rotors And 8 Ceramic Brake Pads 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 Great for: Daily, Street Performance