CRL Cabinet Sliding Glass Door Locks have a heavy chrome plating that gives them a rich appearance. The low profile design is favored for showcases where the appearance of locking hardware may be distracting, but security is important. They come complete with two keys, plug locking case, two washers, and two screws. Use CRL Cat. No. AG1116 to drill an 11/16" (17 mm) diameter hole for installation.