Andake Foldable Neck Pillow, Quick Inflating Deflating Comfortable Portable with Detachable Pillowcase (Gray/Blue, Mouth Blowing/Push-Button Blowing) (Mouth Blowing Grey) QUICK & EASY INFLATING / DEFLATING - Open the black valve cover and blow up the pillow to proper size. Push the center of the valve to deflate. Can be fully inflated within 30s by an adult. ERGONOMIC DESIGN - Provides right neck support and avoid lower back pain. STABLE & TOXIC-FREE TPU MATERIAL - No harmful constituents, perfect for daily use, office nap and travel break. SOFT DETACHABLE COVER & INVISIBLE ZIPPER - Gives comfortable user experience, regular washing enables wonderful user experience. MINI SIZE & PORTABLE DESIGN - Easy to carry and store up, can be used for napping on Airplanes, Cars, Offices, Houses and Outdoors.