Versatile Training: Ideal for all athletes and active individuals personal or team exercises to improve leg, calf, back, chest, shoulder and core strength. Ideal for soccer players, runners, crossfitters, and basketball coaches. Can be used for parachute exercises, and is perfect for pulling a tire and pulling a running sled for body resistance half. It can also be a lot of fun to make a fool of yourself playing. Made of high-quality, durable nylon that will last through years of intense training. Maximize your power - the resistance trainer is Used by athletes around the world who want to become faster, stronger, faster runners. It can also help athletes train to maximize strength, speed, so they can become their best. If you need to improve running speed and strength training. Definitely worth the purchase