Same great teaching tool only built for the player 14 and under. This bag is perfect for teaching young hitters how good mechanics lead to harder hit balls. They can actually see the results while still getting the benefit of strength development. The bag weighs 3.5 lbs. and comes with everything you need to mount to a pole 3 ½" diameter or smaller. You get the top arm and u-bolts to mount to a pole. The bag can be removed from the arm after use for safe storage.