Masterline Ergo Anti-Roll Slalom HandleMasterline Ergo Anti Roll Slalom Handle The Masterline Ergo Anti Roll Slalom Handle is a tournament slalom water ski handle built with a radius end design that resists handle roll in your hands under load. The bent ends also help 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 Masterline signature core, strung up