The Ribbed Tractor Trailer Knob Set is a practical and versatile accessory for your vehicle. Made from chrome plated billet aluminum, these knobs are not only durable but also add a touch of style with their ribbed design. The set includes one tractor knob and one trailer knob, making it suitable for most makes and models. Easy to install, this pair of knobs will enhance your driving experience by providing a comfortable grip and improved control. Upgrade your vehicle with this reliable and functional knob set.