1. Easy and quick installation: Both the lock and the key come with installation pads, which can protect the fragile glass. There is no need for drilling, and the installation is fast and convenient. It can easily slide over the edge of the door glass. 2. Unique key system: Each lock has a different key, and each key is unique. When using multiple locks, each key corresponds to one lock. This key system is suitable for door glass with a thickness of no more than 5 - 8 millimeters and can be easily installed on most retail display cabinets. 3. Protect your collectibles: If you have beautiful antique or vintage teacups or other collectibles, you can use this lock to protect them from damage, loss or theft by children, guests or others. 4. Commercial use: This lock is very suitable for commercial and retail home use. Any retailer who designs display cabinets will find that this safety lock is a great help to their business. It is a unique solution that adds style and security to audio cabinets and glass - door display cabinets. Use this padlock to protect your fragile treasures and collectibles, and no one can enter your display cabinet.