1. Safety first: The punching bag for adults is able to quickly to its original position after each use, designed with robust and strong springs, equipped with 4 screws for installation and solid . 2. Easy installation: The reflex punching bag is a practical and simple boxing accessory that is easy to install, just follow the instructions. 3. Multiple locations: The reflex punching bag is able to train anywhere and anytime, suitable for home gyms and even offices, widely used in many places. 4. Attractive fitness equipment: To improve concentration, agility, speed, and handeye coordination, the punching bag is suitable for most age groups from 13 years old and can train your body muscles.