The Kenworth W900 A/C Control Side Knob is a practical and reliable product made of durable chrome plastic. Designed to enhance the functionality of your vehicle's air conditioning system, this knob is sold individually, allowing for easy replacement and customization. Its sturdy construction ensures long-lasting performance, making it a valuable addition to your Kenworth W900. Upgrade your A/C control with this high-quality knob for improved comfort and convenience on the road.