New Inflatable Portable U-Shaped Travel PillowMaterial:Fabric:100% cotton Liner:100% PVC Features:1.South Korean velvet fabric,soft,skin-friendly,sweat-absorbing and breathable. 2.The new material PVC liner is firm,resistant to heavy pressure,and air-tight.You can adjust the volume of the inner tank according to the actual situation to adjust the softness and hardness that suits you. 3.Small storage volume,send Oxford cloth storage bag. 4.Hidden air nozzle design, with embedded structure,can be inserted into the inner tank after inflation,does not interfere with the neck,and is more comfortable.The double valve anti-leakage design can lock the gas for a longer time and also facilitate the gas blowing. 5.PVC inflatable pillow,travel can not be less,comfortable and no pressure,make your journey more enjoyable. Blowing is divided into two steps:1.Blow into the white gas nozzle,and fill the interior of the chamber with gas quickly. 2.When the gas inside the inner tank is close to saturation, buckle the black gas valve to replenish air,and close the air cap after replenishing air.Only one step to deflate:the inner tank is fully inflated,and you can quickly deflate by pulling the air valve directly. Reminder: Inflatable U-shaped pillow,do not fill the air too full,so that the comfort will be better.