"Relieve Stress: Use Boxreflexball to help you increase your heart rate and get better training, with your help, hand coordination to master timing, adaptability and flexibility. Provide perfect speed training for children. Equipped with elastic band: The elastic band of Boxballsets is anti-fall and can be flexibly combined, so it is also called children's elastic band, which is elastic, light and flexible. Convenient and safe: Simple and easy to use, you can start Boxtraining anytime and anywhere. You will get a smaller Boxball or what your child needs without the environment. Gift: Provide a perfect box gift for men. It is perfect for all training from toddlers to adults, seniors and young children, as well as family life. It is a perfect gift for friends and family. Shipping: 2 balls of different colors and weights (black PU ball weighs 20g, light and large, suitable for boxers and children; red PU ball weighs 80g, suitable for professional boxers and athletes). Elastic fabric band and nylon gloves are a simple spring material with a spring structure, which is easy to move and remove."