The Universal Shot Trainer™ helps you develop a solid form, so you can handle anything opponents throw your way. It's built for three easy setups, each with a different purpose. The first setup targets your form during free throws or uncontested jump shots. The second one simulates a guard in your path, and the third targets your ability to arc the ball over the outstretched arms of defenders. Three-in-one design includes form shooting, guard defending and extended arm defending. Designed for all athletes from 4' to 7' in height. Official training aid of the NBA. Designed for indoor and outdoor play.