★ Product description Size:16″-20″Color:Red,Purple,Black ☆ Good Flexibility:Can adjust the angle and the height of head pillow according to your need.☆ Main Material:Breathable mesh and sponge head pillow; Al-alloy brace.☆ Product Features: U-type sponge mesh pillow, anti-side inverted, can reduce the head pressure, more breathable, light, more refreshing.☆ Convenient: When you dont use it or...