Power Tower is great for improving coordination and flexibility, burning calories and venting stress - Water-weighted design forces it right back up after it has been struck, making it great for sharpening reflexes - Easy-to-use foot pump included - Anti-leak water base - At 5'2" tall, this bag can accommodate strikes from both children and adults- Stores easily The power tower is a great and inexpensive way for both children and adults to enhance their timing, reflexes, agility, or just relieve stress and have fun doing it. The Power Tower is an inflatable punching bag with an anti-leak water weighted base. After being struck the Power Tower's unique design forces it quickly back upright making it a great tool to improve reflexes and timing.