Advantage:1. Quick and Easy to Install:The lock and keys come with a mounting pad to protect your fragile glass, and you dont need to drill a hole, so installation is quick and simple. It slips easily on the edge of your glass door.2. Unique Key System:The keys are not alike, and come individually unique to each lock. With more than one lock set, each key will be unique to that lock. This key system fits a glass door up to 5-8mm thickness, easily attaches to most retail display cases.3. Protect Your Collectibles:If you have a beautiful antique or vintage teacup, or other collections you can use this lock to protect them from kids, guests, or other people, so nothing gets damaged, lost or stolen.4. Great for Retail Businesses:This lock is perfect for retail businesses and home applications. Any retail establishment with display cases will find this security lock a great addition to their businesses.5. Superb Solution:Adds style and security to stereo cabinets and showcases with glass doors. Protect your fragile, delicate treasures and collectibles with this lock. Nobody but yourself will have access to your favorite cabinet.Specification:Product size: 32 x 23 x 35mmMaterial: Zinc AlloySurface treatment: Nickel PlatingSuitable glass thickness: 5-8MMScrew hole distance: 23mmSandwich cover: 2mmincludes:1 x Lock2 x Keys.