This door safety lock is made of stainless steel materials, easy to install, disassemble and reuse. It provides extra security, privacy for your home or hotel, prevent others from breaking into your room without authorization, very professional and practical. Features - Color: black. - Material: Stainless steel. - Size: 20.30X5.00X0.18cm/7.98X1.97X0.07in - Using stainless steel thick materials, this security lock is durable, not easy to rust, high strength, prevent breakage. - Door lock chain can be used to prevent children or pets from opening doors or cabinets by themselves. - Perfect for hotels, dorms, apartments, rental houses, bedrooms or private rooms, very professional. - The surface of chain door guard is brushed finish to make it more wear resistance and corrosion resistance. - It help you prevent unwanted visitors breaking into your room, better protects your privacy.Package list: 1 x chain door lock 1 x key 4 x screws