These pads have a 11/8" inside diameter and fit standard racks by companies like Yakima and Thule. These crossbar pads are constructed of Sunbrella material. Sunbrella is extremely resistant to the Sun's harmful rays and will not fade. Customized with our famous "Go Bananas" logo. These rack pads are sold as a pair to fit on both crossbars on the facory car/SUV rack.