Features: - The harder to hit the ball, the faster it comes back. - The ball consists of a rubber ball connection to the intro of an elastic string. - You can use it as boxing punching speed quick response training accessory. - It can help train your reaction, agility, punching speed, fight skill and hand eye coordination while providing an interesting workout. - Perfect for work breaks or school breaks or even for the beach and the park, this focus punching ball will burn many calories and help you get fit. Specifications: Material: Rubber Headband size: 680*38mm Package included: 1 x Fight Ball 1 x Headband Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.