Upgraded Air Valve-This upgraded travel seat cushion is designed for portability, featuring a small air pump embedded inside. Simply press the air valve repeatedly to inflate. Compared to the old, there's no need to carry an air pump, and this inflatable seat cushion can be folded for maximum storage space. After inflation, the air release valve can be opened to adjust the amount of air inside the cushion. The double-layer air valve design of plane seat cushion ensures good sealing.
