Both WR5 5-Lite and WR9 9-Lite CRL Mobile Auto Glass Racks assemble easily for fast pickup truck bed installation. The heavy steel powder-coated base holds the sponge rubber protected masts firmly to keep your windshield load steady. Adjustable grips press against the glass to prevent movement, and the rubber protective strips on the base plate ensures against glass breakage. Black powder-coat finish gives all-weather resistance. Masts are 19" (482.6 mm) high. Mast Extensions are also available.