The middle layer of the air cushion film is filled with air, so it is light and elastic, and has the properties of sound insulation, shock resistance, wear resistance, moisture resistance and dust prevention. The air cushion film can also be made into multi-layer composite film with pure aluminum film, aluminized film and pearl cotton, which is a commonly used soft packaging buffer material at present, and can be made into bubble bags, bubble sealing bags, kraft paper bubble bags, motorcycle heat insulation pads, swimming pool sunshine covers, etc. Compared with the solid plastic made of the same material, the air cushion film is smaller in density and lighter in weight, so it is larger in volume and higher in transportation cost! Therefore, customers are generally advised to buy locally! The air cushion film has good shock absorption performance and shock-proof effect, and can effectively protect the packaged articles, so many machine parts and a large number of articles that are afraid of falling and breaking are protected by air cushion film or air cushion film bags during transportation!