Masterline Ergo Anti-Roll Radius Slalom HandleMasterline Ergo Anti Roll Radius Slalom Handle The Masterline Ergo Anti Roll Radius Slalom Handle is a tournament slalom water ski handle built around a 20% radius bend and bent end caps that resist handle roll under load. The bent ends also act as a recovery aid when you mis grab the handle on the gate, giving you usable bar material outside the main grip rather than a hard edge. The bar uses specially formulated EPDM rubber bonded to a custom