Package Contents - 3 x Cabin Hook, 12 x Screws for Fixing. Cabin Hook Size: 3 in, Screw: M3.5*13mm Premium Quality & Easy to Use - The wind hook is made of solid stainless steel, strong and durable, rust-proof, anti-corrosion, not easy to fade or crack, premium appearance. Widely Used - The hook lock can be used to lock a variety of doors or windows. In addition to conventional doors, it can also be used for sliding doors, windows, closets, cabinets or other doors or windows that can be used. Suitable for many places, such as bedroom, office, yard, farmhouse, basement, etc. Multifunctional - Cabin hook can be used to hold doors and windows closed or open so they don't swing or get blown away by the wind. At the same time, it can prevent toddlers and pets from sneaking out of the room. Providing extra security for you and your family. Easy To Install - Screw mounting type, with matching mounting screws for attaching to wood or other flat surfaces, does not require specialized skills and tools.