This is a standing air sandbag. By filling the bottom tank with water or sand to secure it, it will stand back up no matter how many times it's knocked down. It becomes heavy to carry when you fill the tank, but you can move it easily and store it compactly by emptying the contents. You can also use it without filling it. Size: Approximately 160 x 60 cm Material: PVC How to use: Fill the bottom tank with water to the maximum, then inflate with air. When storing, first deflate the air and remove the water or sand from the tank. Condition: Unused item stored at home. There may be small scratches or minor marks from the manufacturing process. If you have any concerns, please contact us before leaving a review. We will carefully inspect and ship the item.