The Wind-Proof Lock is made of high-quality Brass by CNC machine cutting, bending and surface polishing, which is very beautiful. It is mainly used for fixed doors, windows, grilles, barn doors, fence doors, wooden boxes, cabinets, etc. When the window is opened outwards, it is used to pull the sash and the sash together to prevent the wind from damaging the window. Installation method: itself screw-fixed, locked by hook-and-eye fasteners, easy to use.