The collar Ambu Perfit is a rigid collar to maintain alignment of the neck and the prevention of Antero rear and lateral movement of the neck during transport and the aid to the patient. Adjustable in 16 different sizes for adult patients & Compatible with the investigation radiological systems, such as X-ray, RMI and TAC; Polyethylene material; Dimensions: 56 x 18 x 1.5 cm (approx.)