This is a fantastic pillow to bring with you in car, airplane, office, camping, so.. wherever you want!
It swells itself by pressing 30-45 S the button (it becomes 3.14 inch height and 11.41 inch length) and once you had use it, you can to press valve button let air out so it takes up really little space (4.72 inch) because you can put it in its bag.
This is a hump-link support designed to encourage proper alignment between head , neck and spine.
It has a washable velvet material cover and a strong bearing capacity so it isn't easy to break.
In the package there is also an eye mask and two earplugs with soundproofing.