Feature:1. This inflatable boxing column is made of environmentally friendly PVC material, which is strong and reliable. It rebounds quickly and gently.2. Open the gap at the bottom, fill it with water/sand, and close the plug tightly. You can pump air into the inflation hole until it is fully inflated.3. With compact shape, very easy to take with , and can be used anytime, anywhere4. Very suitable for fitness and stress relief, improve coordination and flexibility, burn calories and reduce stress, while increasing flexibility and handeye coordination.5. It is also suitable for taekwondo training, and can be used for adults and children.Specification:Condition: 100% Brand NewItem Type: Punching BagColor: Black+RedMaterial: PVCModel: SL003-13Inflatable Size: Approx. 170cm/66.9inInflatable Boxing Rod Diameter: Approx. 63cm/24.8inThickness: Approx. 0.35mm/0.014inApplicable Person: Unlimited, girls, boysAbility Training: Emotion, intellectual development, manual brain exercise, other ability training, interactive toys, parent-child communication, interest cultivationDescription:1. Open the bottom plug2. Fill the water inlet with water or sand3. Close the inner plug and tighten the outer ring4. Use an air pump to inflate through the nozzle.Package List:1 x Punching Bag1 x ManualNote:1. Make sure to hold at least 7KG/15.4lbs of water, otherwise the column will not stand upright and will easily fall.2. As this product is a plastic inflatable product, please stay away from sharp objects to avoid scratches and air leakage.3. Do not squeeze hard, children do not sit on it, so as to avoid damage due to excessive pressure.4. When inflating, just use an appropriate amount. Do not overinflate to avoid bursting.