Wall Savers - Wall Protection - Scratch Prevention - Set of 4 These are used to protect walls and prevent scratches when installing baby gates, pet gates, tension rods, etc. I bought these to install a baby gate, but I made a mistake in measuring the distance to the wall and couldn't use them, so I'm selling them. I only tried to install them, so they are almost unused. However, there are small yellow stains or black lines on the center hole of only two of them from the time of purchase. (Please check photos 5-6) The yellowing will not be visible when installed. Please refrain from purchasing if you are looking for a perfect item, as it has been stored by a non-professional. I would appreciate it if you could understand. If you have any questions, please leave a comment.