Really helps on slippery rocks.
These were the ticket...............easy to put on and adhered nicely..............hardest part was getting old felt off
The box instructions recommend you secure the soles after gluing with tape. I used duct tape, but when I was removing it, I pulled some of the laminations of the sole apart. After that, I was very slow and deliberate in removing the tape, and I had no further problems other than a little fuzzing of the sole. So, take care in removing the tape after the glue sets!