Composition: Made of PE and PA Size: Before inflation 7.87x3.54 Inch; After Inflation L6.30 x W2.36 x H1.97 Inch It can be inflated just by a normal small pump, and you can inflate 5 or more in only 3 seconds. Do not need to invest an expensive machine. Before inflation it is flat ,So that there is no space took up and it can help to reduce the storage cost as well It Is The Tearable Design. Each pillow is perforated and connected together in a strand, so you can tear off exactly how much you need for your packaging Main Application: Fills extra space in box to keep items in place; Maintains package shape and integrity