Dunnage Air Bag for Packing gives stability to boxes or pallets inside the cargo. The Bag is inserted into void spaces inside containers, rail cars or trucks and is then inflated with compressed air to the recommended level. The Bag creates a solid brace, stabilising the load and preventing any future movement, thus greatly reducing the risk of damage during transit. The Dunnage Air Bag for Packing has the feature that as the bag is inflated it gently pushes the load away from itself, wedging it against the walls of the container.