Atmospheric Valves : The Inflatable Travel Pillow Uses the Unique Big Air Valve, Compared To the Ordinary Inflatable Air Pillow is Easier To Inflate and Deflate. Perfect Angle Design - 45°：The Airplane Neck Pillow is Designed with a Perfect 45°Angle, Allowing Your Head and Neck to Naturally Lean Forward, this Sleeping Pillow Decrease the Pressure of Your Cervical Vertebra.
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