[Quick and Easy to Install] The lock and keys come with a mounting mat to protect your fragile glass, and you don't need to drill a hole, so installation is quick and simple. It slips easily over the edge of your door glass. [Unique Key System]The keys are not identical, and are unique for each lock. With more than one lock set, each key will be unique to that lock. This key system fits up to 58mm thick door glass, which easily attaches to most retail display cases. [Protect your collectibles]Whether you have a nice antique teacup or vintage, or other collectables, you can use this lock to keep them safe from children, guests, or other people, so nothing gets damaged, lost, or stolen. [Great for Business] This lock is perfect for business and home retail applications. Any retail business with display cabinets will find this security lock a great addition to their businesses. [Outstanding Solution]Add style and security to stereo cabinets and display cabinets with glass doors. Protect your fragile treasures, and collectibles with this lock. But no one will have access to your cabinet. Note: The data is manual measurement, please allow 1-3cm error, due to the light and screen differences, there will be a certain color difference, the specific received in kind prevail.