Perfit Ace Adult Adjustable Collar is only adjustable one-piece rigid cervical spine immobilization collar with 16 precise settings for a customized fit within the range of 4 standard adult settings. The Perfit is designed to assist with the maintenance of neutral alignment, prevention of lateral sway and anterior-posterior flexion and extension of the cervical spine during transport and routine patient care or movement. The product also features a flip chin piece for flat storage to fit the chin and to facilitate intubation and removal of vomitus from the patient's mouth.