Here is another resistance trainer that helps you improve your athletic performance. The SKLZ Recoil 360 stretches from 8 to 22 feet with its resistance increasing from 15 to 50lbs. You can use this to perform various drills to work on your power, agility, and explosiveness.
The Recoil 360 can be used with a partner. It simply helps you maximize your jump, power, and speed.