The Master Reactor Free Standing Bag features a reinforced synthetic shell on the outside and on the inside, a compressed foam cushion measuring at 12" diameter and 24" tall. It has a plastic base measuring 24" in diameter and 10" tall, which can be filled with water or sand to secure it on the ground.Approximately 130 lbs when base is filled. With multiple adjustable heights at 60, 64, and 67 inches this bag is great for all sizes and all types of kicks and punches. Some assembly required. Not for outdoor use. *ADDITIONAL SHIPPING APPLIES.