Our home security door lock uses aluminum alloy construction made. The sturdy safety door lock keeps your home safe. This reinforcement security door lock is a good choice for home security or apartment security. And the perfect gift for your families and friends. Features -Color:Silver. -Material:Aluminum alloy. -Size: About7.50X6.40X2.50cm/2.95X2.52X0.98in. - Heavy-duty reinforced door lock provides extra security for your home, apartment, hotel, etc. -Made of aluminum alloy with wear resistance and high hardness, ensure long-term use. -Easy to install and remove, greatly save your time and efforts, bring you much more conveniences. -The door latch helps to ensure any door cannot be opened from the outside. -Its thoughtful design makes the door latch easy to use and gives your home extra security and reassurance.