The radio bezel has a universal fit to work on most aftermarket radios. Drilling is required to mount and hardware included. Measurements are: 11 inches L x 2 7/16 inches W x 1 9/16 inches H; radio opening 7 3/16 inches L x 2 inches W; and center hole to center hole is 1 11/16 inches for drilling. Fits the GL1200 Interstates or radio fitting these dimensions. Single.