I bought this when my child was small to prevent them from getting their fingers or limbs caught in the door. Now they're older and we don't use it anymore, so I've been storing it. I don't want to throw it away, so I'd be happy if someone could use it. How to use: 1. Place the black handle over the silver metal part. 2. While in that state, turning it clockwise will move the metal on the back, allowing you to lock it. Due to thickness, I will ship it with the black dial part removed. Please understand that this is a used item before purchasing. Thank you for your consideration. m(__)m