O'Brien Kneeboard Rope and HandleThe O'Brien kneeboard rope and handle provides strength and comfort for white knuckle rides. Made from rustproof aluminum with UV and water resistant filet PE, this handle and rope combo will last years on the water. Designed for use with Aqua Hook and HydroHook equipped kneeboards. Tow Rope Features Aqua Hook Bar: Small bar (forward of the grip) allows the handle to be easily hooked on the board while keeping the main part of the handle closer to the