High quality material: the latch is made of ABS and iron. The iron pin core is not easy to oxidize and has strong corrosion resistance. The thickened plastic is environmentally friendly and durable, with strong stress and not easy to break. Spring-loaded: built-in strong spring, can be used for many times without reducing the elasticity. Press the red button to open it immediately, then press the pin core to lock it. Maximum Fixing Force: The size of the latch is as shownDoor Latch - Automatic Door Latch Aluminum Door Latch Latch Window Door Safety Spring Ring Pull Spring Bounce Latch Latch Latch With Screw (Black), the closer is door has a large base, four mounting holes can effectively fix doors and windows, providing you with security and privacy. Application: These slide bolt locks are suitable for various wooden door frames, such as wooden doors, wooden windows, kitchen cabinets, shoe cabinets, wooden cabinets and wooden sheds; locks can protect you indoors and outdoors. Size: as shown Color: Black Install: Drilling and screw mounting. Package includes 4 x spring loaded latches. becomeveryrich