This listing features one complete set of Bumper Quick Release Fasteners in powder-coated anodized finish. This Quick Release Fasteners are ideal for front bumpers, rear bumpers, and trunk / hatch lids, that you need to remove frequently, or remove and reinstall quickly, such as in the pits. This complete set includes 4 pieces powder-coated anodized finish Aluminum quick release fasteners; 4 pieces steel washers; 4 pieces steel locking nuts with screws; 2 pieces O-rings. Professional installation is always highly recommended (no instruction included). And it is designed for off-road use only