【Pain Relief】: The non-rigid cervical collar supports the jaw and neck while limiting mobility to relieve pain and pressure in the spine. We suggest wearing the Neck Brace for one to two hours at a time for the best results. 【Surrounding Fixation】: Relieve compression, fit and fix the cervical spine, limit abnormal movement of the neck, open the cervical spine gap, stretch the neck, and relieve the compression。 【Comfortable and Skin-friendly】: Neck collar is made of soft foam and covered with skin-friendly thread woven breathable mesh cotton fabric. soft foam cushions children's jaw and neck for a comfortable, supportive fit. It can be worn all day, and it is comfortable to wear when sleeping. 【Ergonomic Design】: Designed in accordance with the natural curvature of the head and neck.