1.High quality material: The inflatable sandbag is made of high-quality environmentally friendly PVC, durable, thick at the bottom, wear-resistant, easy to inflate and deflate, foldable for small storage, fast rebound speed but soft enough, and the height is 125cm after being fully inflated.2.Easy to use: just fill the bottom chamber with water or sand to keep the bag upright, then fill the top chamber with air and get ready for fitness. Enough water or sand can make the bag stronger.3.Widely used: This practical and interesting taekwondo training package helps to improve children's mobility and hand-eye coordination, and promote children's physical exercise. Suitable for home, courtyard, gym, etc.4.Relieve stress and anger: This fun inflatable boxing column is perfect for maintaining health or relieving stress, and can be used by children. Very suitable for relieving stress and anger.5.Lightweight and durable: This inflatable boxing column is made of high-quality materials, lightweight and durable, with a thicker bottom design, which is more wear-resistant. This inflatable boxing column allows you to exercise in the most convenient place, very suitable for your home or commercial gym.