EZGO 72935G01 Front Brake Pads for ST 4x4 Lawn Mower, Set of 4 Used on E-Z-GO Gas ST 4x4 Models Positioned between the calipers and rotors to aid in the slowing down and stopping of vehicle Set of 4; 4 brake pads are required per vehicle,by orderingone set, you will have enough brake pads to replace both front wheels