The Jackson Roll positioning pillow is one of the most versatile, fiber-filled support pillow from Core Products. It is specially shaped to help provide comfort and support. Use it under your neck for correct sleeping posture, or behind your back for lumbar support. Use it behind your knees for additional comfort while resting. Great for travelling or home use!The Jackson Roll is constructed with the highest quality Corefill fiber and covered with durable fabric to ensure years of comfort and use.