Riedell and PowerDyne have created the Y3 Skate Tool to be an ergonomic non-slip grip tool offering 3 tools in one.Featuring 9/16" and 1/2" sockets and a 15/16" open wrench tool to fit most skate repair needs. The Y3 Skate Tool is a great tool for most plates, and one of, if not the best tools for roller skate plates that uses a washer and nut system for toe stops (most nylon plates and PowerDyne Thrust plates).