Give your interior a distinct touch with these 3 Inch Chrome Air Valve Knobs with Maltese Cross Stickers. Designed as screw-on air valve knobs, they are made from chrome-plated aluminum and feature a glossy finish with a triple chrome plating process. Options include tractor or trailer script with blue, red, or black Maltese Cross sticker designs, depending on the option selected. Measuring 3 inches, these truck air valve knobs are sold individually and are listed as high-quality aftermarket replacement parts, not OEM components. The knobs include a warranty against defects in workmanship and materials from the date of purchase. The product is listed as a special-order item and cannot be canceled or returned, so review the available script and color options before ordering.