Gotta have lube
Seems more robust than the original. Could use something to keep the ends from moving or wearing. Heat shrink? I used electrical tape.
Definitely need instructions to properly lubricate before installation. I got the first one about 3/4 installed and had to cut it off because it would go no further on and wouldn't slide off. Fortunately, I bought more than one. I had put liquid soap on the metal tube, which just pushed down as I installed the foam, leaving a dry surface. Putting the soap on the inside of the foam made it slide on easy.