[High Quality Material]: The spring automatic door bolt is made of solid aluminum alloy, which has the characteristics of anti rust, anti corrosion, non deformation, sturdiness and durability, and has high hardness and strength.[Unique Design]: The inner ring is equipped with a spring and a circular pull ring, which is convenient to switch; the base is thickened, and the handle is cast as a whole, with high stability.[Easy To Install]: Align the door bolts with the door and door frame, and then screw the attached screws into the wood for fixing. This location can be installed according to your needs, and you can install it in a few minutes.[High Safety Performance]: Although the door bolt is small, it has high hardness and good stability. It is equipped with a spring and will not be easily opened by mistake. It is safe and protects privacy.[Wide Range Of Applications]: The door bolt lock is suitable for fixing small doors, windows, courtyard doors, desk drawers, cabinets, tool boxes, storage cabinets, kitchen cabinets, etc.