Franklin Sports 2-in-1 Power Spring Swing Batting Tee and Pop Up Training Set Assembled size: 15.5-Inch x 16.5-Inch x 28-Inch, Easily adjusts from tee to pop up Works with all baseball types Adjusts in height from 22-Inch to 28 -Inch Durable and weighted high impact polystyrene base For ages 7 and up