SPEEDSTER&reg; Shoulder Harness & Swivel Waist Belt - Use with Resistance Bands, Speed Sled, Overspeed & Sports Power Training Fits up to a 48" chest & waist. Designed for pulling sleds & bungee speed training. Comfortable, easy to adjust, & simple to attach to bungees & straps. Speedster Training Products are used by athletes, coaches, organizations and teams worldwide. Made in USA. 1 year conditional warranty