Long-Term Cervical Collar restricts cervical spine movement to promote patient recovery. Large trachea opening for quick access for pulse monitoring and emergency tracheotomies. Customizable two-piece design to provide additional stability and comfort. Rear panel provides ventilation to reduce heat and moisture. X-ray, CT, and MRI lucent. Regular, Orange. 3" (7.6 cm)H, 13-20" (33-50 cm) Circumference.