The RAM Drop-N-Lock Scanner Gun Holder is a specially designed cradle that will hold most types of Gun Scanner handles. On the side of the cradle is a spring loaded leaver that will securely hold the Gun Scanner in the cradle. Simply drop the scanner handle into the holder and it will lock in place immediately. To remove simply lift the tab behind the holder and your scanner gun will lift right out with ease. Internal Holder Dimensions: Inside Width: 1.46" Inside Length: 2.5" Inside Height: 5.11"