Perfect for honing your stroke technique in a small pool, the 10' Swim Belt from Lane Gainer is designed for resistance and speed-assisted swim training. The length and tension of the tether can be varied to supply the desired amount of resistance by adjusting the size of the tubing loop. Speed-assist swims are great for finding your best streamline positions and for fast, high turn-over swims (without full exertion) during the taper phase of the workout. • Great for IM training • A reversing tether ring on the swimmer's belt allows for directional changes without stopping • Resistance swims are great for strength work early in the season