Travel Neck Pillow U Shaped Inflatable Portable Head & Neck Supporting Air Pillow for Car, Train, Flight, Bus:-Travel neck pillow for travelling :Press-type Inflatable and Deflation :Travel neck pillows are quickly filled and deflated by pressing, no mouth blowing, no carry air pump, keep healthy, use anywhere and anytime!Experience :The inflatable & Foldable Travel Neck Pillow Experience is a revolutionary, niche product made for those on-the-go. Close the air-release valve and simply by pressing the built-in ball pump, an inflated end-product is achievable in less than a minute. And for the ladies, it can be used to ease waist and back pain when it's a time of month.Inflatable & Foldable :Your inflatable & foldable travel neck pillow, When using this pillow on a plane, keep its pressure below maximum capacity.This is highly advised since as the plane climbs in altitude, there is a decrease in the plane's air pressure.