Add a personalized touch to your truck's interior with the Deluxe Chrome Aluminum Screw-On Air Valve Knob. Featuring a glossy chrome finish, this aftermarket air valve knob offers a stylish upgrade for your truck's air brake controls. Choose between the "Tractor" or "Trailer" label, with each option including five multicolor glossy stickers for added customization. Constructed from aluminum, the knob combines an eye-catching appearance with a practical screw-on design for install. Sold individually, it is a universal-style interior accessory suitable for a variety of truck applications. The air valve knob also includes a warranty against defects in workmanship and materials from the date of purchase.