For shipping via Flima apps or auctions. Packing material can fill the gap to protect your valuables and fragile items and protect your valuable items from damage. Unlike paper bumpers, the weight is lighter and can be reduced by shipping costs. Also, you can change the amount of inflation according to the size of the gap, so it fits perfectly in the gap during packing. When you want to use it, you can inflate it by simply filling it with air and taking up a lot of storage space. This is a simple item that can be removed after use. Air pump not included.