These pegs are great. But the other day I thought I had a show string stuck to the bottom of my boot. Naturally I yanked on it and wound up pulling the liner out of boot as the pegs had eaten clean through my boot sole! I'm glad they were my commuter boots and not my Dianese race boots! The profile on the pegs are very sharp and will chew through your shift boot sole in a matter of months if you are a commuter.