Stationary Cords Long Belt Assisted Race-Pace Training: Adapt stroke technique to higher speeds and exposes flaws without over-exertion Resistance Training: Use overload principle from land training to develop strength and power while swimming Coaches Aid: Allows coaches to observe a swimmer's stroke while they remain stationary Practice Perfect Racing Technique: Test different head, body, and hip positions Extended 20.7 ft (630 cm) Resistance Cord Length: Stretches over the entire pool length (can be used in 25 yard or 25 meter pools) Internal Safety String Inside Rubber Tubing: Provides a layer of safety in the event of a breakage Adjustable Nylon Belt: Wide, comfortable belt is one-size fits all