PROMOTES AN EARLY VERTICAL FOREARM (EVF) Connects forearm and hand into a single surface  TEACHES A HIGH ELBOW POSITION Calls for a high catch by lifting the elbow， ideal for open water and triathlon training FIGURE-EIGHT DESIGN Develops correct stroke muscle memory and prevents shoulder stress without losing the feel for the water against forearm and palm of the hand TECHNIQUE DEVELOPMENT Specifically designed for stroke refinement and technique focus IMPROVES EFFICIENCY Maintains a strong， uninterrupted pull ALL FOUR SWIM STROKES Versatile tool for butterfly， backstroke， breaststroke and freestyle