EUDEMON (4 Pack,Grey) Adjustable Door Guard Door Stop, Finger Pinch Guard,Revolving Door Stopper for Child Proofing, Pet Door Stopper,Easy to Install and Use 3M VHB Adhesive, no Tools Need

I bought these for my cats so we could put their litterbox in a closet without having to cut a hole in the door and they work wonders! so easy to install and they cats can easily open the door to get in or out.

This product is doing exactly what it's meant to be doing, but the packaging and instructions are a little on the broken side, so we'll see how long they hold up. All up to the tackiness of the adhesive at this point.