Made of zinc alloy with good corrosion resistance. The lock and key have mounting pads that protect fragile glass without drilling, so installation is quick and easy, and it slides easily over the edge of the glass door. Security: Add style and security to three-dimensional cabinets and display cases with glass doors. Use this lock to protect your fragile and delicate treasures and collectibles from damage, loss or theft. No one can access them except you. Your favorite cabinet. Suitable for retail and home applications, adding style and security to three-dimensional cabinets and display cases with glass doors.