This CRL Glass Showcase Lock is designed to be used on showcases or cabinets with sliding glass doors. Manufactured to the highest standards, this lock is available randomly keyed or keyed-alike. This lock is extremely convenient to open and re-secure. The ratchet bar is secured to one of the glass panels with a plastic tipped thumb screw and should be positioned approximately mid-way up on the showcase door which does not obstruct the view of showcase contents. The bar width is 13/32 inch (10.3 millimeter). The bypassing glass door overlap is 1-1/4 to 4 inches (31.8 to 101.6 millimeters). Each lock is supplied with two double-bit keys which provide excellent security. One complete lock as shown per package.