Riedell PowerDyne Adjustable Toe Stop (Pair) The PowerDyne Adjustable Toe Stop features a regular 5/8” bolt with a urethane stop available in black or gray. This is a pair of toe stops that I did not use. They came on my Moxi Lolly skates. I have other rollerskating accessories for sale as well. Please check my other postings. Ships quickly usually next day.