1.Attention: Emirates, KoreanAirways, Hawaiian Airlines, Asiana, Virgin Atlantic, Airfrance, Air Malta, Egypt Air and Qantas don't allow this product on their flight. Other airlines please check with staff in advance. NO RISK PURCHASE: We promises to provide after-s for this product if there are any quality problem in 6 months even if it is over Amazon's 30 days period. 2.Must Have Airplane Travel Accessories For Parents: Fill the gap between two seats with this travel pillow to extend the seat length. The extra surface can allow childrens to lay down flat or lift their leg up for better sleep, or be a platform for to play toys and relax. Adults can also benefit from the extra surface from the cushion to have the options to change sitting position, sit cross legs, bent legs or just lifting it up at your choice. 3.Double Cap Valve And Adjustable Height: Inflate only the lower chamber for 1-level height, only the upper chamber for 2-level height, or both chambers for full height. Special valve is designed for easier inflation. 4. And : The footrest weights only 0.8lb. Can be folded into a 9"x10" drawstring bag to carry around and inflat to a 17"x12"x18" sitting/ floating cubes whenever you need. 5.No Airpump Needed: We tested. Blowing it up with mouth is faster than using a manual pump and it takes away the hassle of bringing a pump and making noise in flight.