This Cone Type Toggle Switch Extension is designed specifically for Peterbilt trucks. Made of chrome aluminum, it comes with a rubber insert to securely hold on to the toggle switch. Measuring 1 inch in length and 1/4 inch in inner diameter, this set is sold as a complete package. With a screw-on side installation, it is compatible with most makes and models of trucks. Enhance the functionality and convenience of your toggle switch with this practical and durable extension.