Stainless Steel Door Chains,Door Limiter Lock with Screw,External and Internal Restrictor for Wooden UPVC Doors Windows

Material - The safety door lock is made of stainless steel, strong and reliable, not easy to rust, wear-resistant and durable. Strong anti theft function - Anti theft steel chain can enhance security and provide reliable intrusion protection, spring buttons to enhance protection, and can not be unlocked outside, thus making you more secure. Impressive surface: Matte surface with a beautiful appearance, resistant to daily scratches, corrosion and discoloration Easy to install - Drill holes in the wooden door frame according to the holes of the safety lock, and then fix the chain lock with the attached 4 screws. Application - Suitable for opening and closing of inner doors, sturdy and durable, and can be widely used for security and anti-theft of homes, hotels, apartments and courtyard doors.