The inflatable cushion, made by high welding techniqe. The inflatable cushion is made in TPU material .we can make size by your require.welcome OEM order. We are bags factory here located in Xiamen,China.We make all kinds of bags,such shopping bags,non-woven bags,cotton bags,tote bags,duffel bags,travel bags,sport bags and waterproof bags,dry bags etc.Pls feel free to contact us if you have any ...