
This anti-theft chain door lock is made of stainless steel, which is strong and durable, and comes with screws for easy installation. The wear-resistant PU leather cover wraps the chain to prevent the chain from damaging the door panel. Simple to use, just press the button behind the door to remove the chain, it cannot be unlocked from the outside. It is suitable for families, hotels, apartments, etc., to increase security, prevent theft, and give you more security. It can also be used to prevent children and pets from leaving the house without permission.