The inflatable sandbag uses the tumbler principle. Once hit, it will swing upward again.Product description 1. Standing punching bag is a good choice for maintaining health or relieving stress, helping you develop skills and release emotions. 2. It can withstand continuous impact, very suitable for professionals and amateurs, suitable for lazy people and training, suitable for families, yards, gyms, etc. 3. The vertical boxing column helps increase flexibility and hand-eye coordination, and helps adults burn calories.Features: Leak-proof, strong and durable. The base is more stable. It is easier to carry.Product attribute Material: PVC Style: vertical Color: BlackWarm reminder 1. Please remember that due to the lighting effects, the monitors brightness / contrast settings / etcs, there will be some slight differences in the color of the pictures and the actual items. Measured by hand, deviations of 1-2 cm are possible. 2. Please leave us a message if you have any questions. We will respond and offer you our best service.