This is the innovated simple protective tool for transportation. It has been widely used in the various transportation such as container, ocean shipping, trailer and train. It acts as buffering, which can protect the goods from collision when transported. It takes the great effects on cutting the cost of logistics and improving the loading and unloading speed. what?s more, it is the new environmental protection substitute of log or EPS and it can be recycled. it can endure pressure of 5?10 tons.(Note: If customers reuse the bag, please add the sign of recycling to remind the receivers to protect the bag.)