1、Button inflation: double-ended airbag rapid inflation, inflate by repeatedly pressing built-in inflation pump. Press air release valve to deflate. 2、Hump-shaped neck support: The bulge can support your head when is upright as well as relieve your neck and shoulder pressure. 3、Ergonomical design: more comfortable to use, ideal for airplane, car, bus, and train rides- or even at home or office for watching TV, reading, etc. 4、Adjustable firmness: Unlike memory foam or microbeads, you can adjust the size to your preferred inflation level and firmness. 5、Washable pillowcase: Soft crystal velvet pillowcase, with invisible zipper, is removable. You can always travel with a clean pillow! ----------------------- None ----------------------- 无