Sprort Release Stress Fight Ball Head Band for Reflex Speed Training （Red Ball） Feature: The best way to improve hand eye coordination and reflex. This boxing speed ball is a good choice for increasing kids' eye-hand coordination, reflexes, agility while enjoying themselves. It is suitable for man or woman, teenager or child, even boxing trainer. Everyone can use it to train, have fun or release stress. Maybe you are accustomed to lifting weights or running on the treadmill, but fight Ball might be even better and far more compelling. The unpredictability of the rebounding ball, coupled with the intensity of your punches will really burn out your arms, chest, shoulders and upper back, perfect for calorie burning and conditioning! In addition, it's very addicting. Have no motivation to workout at home? Do not want to go gym? No worries, this punching ball can do a big favor, it is so lightweight and portable, which means you can take it with you to anywhere. Perfect for work breaks or school breaks or even for the beach and the park. Headband: Silicone gel sweat-guiding headband for boxing ball, which can guide sweat on both sides of the forehead, sweat will not flow into the eyes. After use, the sweat on the head band can be washed directly without being disturbed by sweat. Easy e, the harder you blow, the faster the ball comes back. It can help to improve speed and sensitivity. Specification: Material: PU + silicone Ball weight: 20g Head circumference: minimum adjustment head circumference: 46cm/18.11in maximum adjustment head circumference: 60cm/23.62in Package list: 1 * Head band 1* Ball Note: Please allow slight error due to manual measurement and make sure you do not mind before ordering.