Speed parachute training allows you to maximize acceleration and top running speed through resistance and overspeed workouts. The resistance parachute quickly improves stride length and frequency to max out top end speed. The Speed Chute has a quick-release function to use mid-stride for that "shot-out-of-cannon" sensation. The included DVD contains several running parachute drills. Built-in mesh panels keep strings from tangling and help stabilize the chute during workouts. 54" x 54" chute provides approximately 15-30 lbs. of resistance (depending on speed of user). Quick release belt buckle allows for training with acceleration bursts. 360 degree rotation belt with free motion ring allows for movement in any direction. Adjustable belt fits most athletes. Includes instructional DVD and 6-week progressive training workout plan.