Cheap, replaces your non-drive side come nut. Seems to take abuse well, but I mainly ride coped ledges and rails.
The sleeve ends up stretching and it doesn't fit snugly onto the cone nut after a while. So sleeve will rotate if not tightened down a stupid amount.Overall Review: With all the other brands out there I would just try one of the other universal freecoaster guards, or I would use chromo universals. That or buy the proper brand for your hub.