Cervical Roll This is a cervical neck support, for therapeutic use, and rehabilitation workouts. It is also used primarily for home use by inserting the roll between the pillow and the pillowcase. This provides the neck a perfect support while sleeping or resting. The Cervical Roll is ideal for traveling or home and rehabilitation use. It is available in a white, 60% cotton, 40% polyester fabric, or an all natural 100 % unbleached cotton. The foam used is an Ultracell Polyurethane foam especially designed for a perfect compression and density for your neck to be supported all night while sleeping. Dimensions of the Cervical Roll are: 48.5 cm. long X 9-cm. diameter round