Features11. Material: Made of double layer foam and EVA foam superimposed on each other, which is soft and provides more powerful support. Skin-friendly materials gives you comfort in continuous use which helps keep your neck cool. 22. Dual-use: The external flexible plastic support plate that can be removed freely is added to improve the support force. 33. Reduce pressure: Our cervical collar supports the jaw and neck while limiting mobility to reduce discomfort and pressure in the spine. 44.Ergonomic wear: Designed according to Ergonomics, its “V” shape at the under jaw makes it more comfortable and solid, and the curve rise at the back supports the neck better. 55. Adjustable: Hook and loop fasteners, free to adjust the tightness, to prevent the pain caused by swinging. 6SpecificationSuitable size: the circumference of the neck is about 28-45cmBody fabric: cotton cloth + plastic support sheetHeight: about 9.5cmPackage includes: decompression neck support*1 Package List