Relieve your neck just by wearing it! This neck and cervical spine support helps support the weight of your head. The height can be adjusted with the two-piece plate. Minimum height: approx. 8cm, Maximum height: approx. 11cm. The plates have ventilation holes, and the side fabric is mesh for good breathability and less stuffiness. Suitable size: Neck circumference 30~46cm Product size: 8cm (length) x 57.5cm (width) x 1.7cm (thickness) Weight: 100g Material: Main fabric: 100% polyester, Filling: Polyethylene *The box will be shipped folded.