Sticks to Glass Available in Three Finishes Fits Glass Doors Up to 3/8" (10 mm) Thick Economical, Easy to Install Order This Lock if You Need Two or More TDK7A Keyed Alike CRL Stick-On Showcase Locks help resist shoplifting, and cuts down on damage. Peel and stick adhesive - easy to install- no holes to drill or special tools required. Locked door cannot be separated or lifted out. Easy to operate - push in and turn key. Works with doors overlapping 3/4 to two inches (19 to 50.8 millimeters). Comes with two keys. Color: Aluminum Minimum Order: 1 Each