This door lock provides you with extra security and privacy. it protects you and prevents unauthorized people from entering, even with a key or violence, the door cannot be opened from the outside, The safety door lock has a certain safety gap, and it also acts as a ventilation to keep the indoor air fresh . nstallation is quick and easy,additional security for your doorand extra security and peace of mind can be achieved in just minutes. Security Door Lock adds extra security for children, prevent from opening door to strangers. Please install higher than the doorknob where your children can not reach. The safety door lock is made of high-quality zinc alloy, which does not rust, has high strength and is not easy to get stuck. Can be opened quickly in an emergency. High security door locks are suitable for apartments, dormitories, bathrooms, bedrooms and other scenarios. Perfect for safety of single women, children, seniors. This is an ideal anti-theft door lock to keep your family safe and property safe Net weight of single product (excluding screws): 10.40 ounces Product color: silver Materials: High quality zinc alloy Package Includes: 1 x The safety door lock 3 x 50mm / 1.97 inches screw 3 x 70mm / 2.75 inches Screw You can choose the screw length required for the reinforcement lock Kind tips The product packaging is accompanied by an instruction manual. The product size of the reinforced lock is shown in the figure