The Global Industrial Deluxe 5-Bike Wave Bike Rack is constructed from heavy-duty, 2-3/8" diameter steel tube that is protected with a durable gray powder coat finish. Predrilled holes in the surface mounting flanges allows for easy installation. The single-piece design requires no assembly and is ready for use. These items are instock and ready for immediate delivery! Check out all of the Global Industrial Bike Racks we have to offer!