Review on Ives Commercial SR64BG Silencer Rubber: A Noise-free Solution for All Surfaces by Jerry Frey

They fit snugly and snugly in the holes in the frame, but that also means that if you don't insert them carefully, you can push the shaft all the way through. I quickly spritzed on some silicone spray and wiggled the rod a bit as I inserted it. None of them pierced, and they greatly improved the sound of the door closing compared to the metal frame, just as I had hoped.