Material: PVC Size: about 150cm(59.05inch) after inflation, thickness: 0.3mm/0.01inch (Approx.) Package List 1 x Inflatable Punching Bag 1Inflatable punching bag: It has two compartments. The bottom is water or sand to increase the weight so that it stands steadily on the ground. The upper is air so you can train your skills. The base can be filled with sand or water to stabilize. 2 Versatile: This fun inflatable sandbag is perfect for fitness and stress. Improve coordination and flexibility, burn calories and reduce stress while increasing flexibility and hand-eye coordination. 3 Lightweight and durable: This surface is made of high-quality PVC material, light and durable, and the bottom is thicker and more wear-resistant. 4 Fits for adults and children: It is also an ideal choice for Taekwondo training. Can be used for adults and children. 5 Application: Suitable for your home or business gym.