Perfect for Training: This fantastic hopper ball is great for training balance, endurance, and coordination, suitable for both adults and children. High-Quality Material: Made from eco-friendly rubber, this hopper ball is explosion-proof, durable, highly elastic, and boasts a strong load-bearing capacity. Fun for Everyone: The thickened rubber band can be stretched or disassembled, offering two fun ways to play. Easy to Carry: Easy to assemble and transport. This hopper ball can be used both indoors and outdoors, such as in parks, playgrounds, gyms, or at home. Improve Coordination: Use this hopper ball daily to train your vestibular system, promote leg development, and enhance exercise coordination and balance.