This device is installed under the door handle. So when someone tries to open the door, the handle can no longer move, preventing the door from opening. However, this means that the door handle often hits this device.
To prevent it from breaking or spoiling easily, this door handle child lock is made of durable materials. This basically means that it will stay in perfect working condition for a long time without spoiling. So you don't need to replace it frequently. Of course, you can lock and unlock your door handle with the buttons as you need!