The SKLZ Pro X Tee is an institutional-grade tee that allows advanced players to work on countless drill options to correct swing flaws with quality repetition training. It uses the same steel/aluminum base and adjustable tee stems as the Pro X Tee, but comes with some extras as well. Included in the system is a "Stay Back" bar attachment that provides feedback on your lunge and stride. Also included are a Powerball Tee Top for oversized training balls and a ball bag for continuous swing practice. This system teaches swing skills like bat speed and power, inside and outside pitch paths, opposite field hitting, load drills, and high and low ball drills. Folds down to fit in included carrying bag with shoulder strap. Adjustable height with durable neoprene and nylon tee tops.