1.??Rugged and durable??: The independent punching column and the base are stable and can withstand heavy punches and kicks without falling. The multi-layer PVC material is durable but soft enough not to damage the punch. 2.??Relieve stress??: This sandbag is very suitable for family exercise or relieve stress when children sit and irritate all day. You get good exercise to prevent the outbreak of bored brothers and sisters, which is a great way to relieve the stress of children and adults. You can also train your child's coordination and flexibility. 3.??Lightweight and easy to use??: Just add water or sand to the base, and then use a bicycle pump to fill the top and middle with air. When not in use, it can be empty, folded up, ready to play, travel or take it with you next time. 4.??The setup is simple??: first you can add water or sand to the bottom of the sandbag, use an air pump to inflate the top, and then it will bounce back normally. This freestanding boxing bag is easy to inflate and deflate, and can be folded into a small size for storage. You can use it at home, office, backyard and park. 5.??Ideal gift??: Birthday, Christmas or other holidays, this inflatable sandbag is a surprise gift for your child to have fun. You can exercise at home or interact with your child in boxing.