Product Description Material: Polyester+PU+Rubber Style: black PU ball + red rubber ball, yellow PU ball + red rubber ball Quantity: 1 piece Package content: 1* elastic buckle headband, 2* balls, 1* color box 1.Unique design: This boxing training punch has a rotating buckle, which can reduce the irregular movement of the elastic ball towards you, which may result in better performance than the usual reflex training system. 2.Advanced comfort design: This high-quality headband has multiple soft layers to make you feel more comfortable, and the fully adjustable headband is easy to fix correctly and safely without the risk of slipping. 3.Multifunctional: suitable for men or women, teenagers or children, and even boxing coaches. You don't need to be a professional boxer to use the punching bag. 4.Practical everywhere: no need to go to the gym, just buckle the training ball to have fun, and burn your body within a certain period of time. Very suitable for work or school breaks, even beaches and parks. 5.Relieve stress: This boxing reflex ball will increase your heart rate for excellent training and help you develop the timing, speed and accuracy of hand-eye coordination.Products from NIUNIU's store