Tuwa Chevy Silverado 2001-2023 4CX Series Shiprock Bed RackThe TUWA Pro 4CX Shiprock Bed Rack System was modularly designed to handle and transfer cargo in your Pick up truck. Offering great versatility with different configurations and height adjustment options at 17" 20" or 23" (measured from the bed rail). Maximizing your trucks hauling capacity and provides multiple tie down options for securing and carrying various cargo items. Comes with all the necessary mounting hardware for a no drill or modification