The Carex® Semi Roll Pillow is ergonomically designed to provide ideal spinal alignment and a therapeutic sleep posture to help reduce head, neck, shoulder and back discomfort.  Can also be used under the back, knees or ankles.  Made of high quality, high density self molding memory foam, this pillow provides support and relief to many areas of the body.  The removable soft polyester and rayon cover zips off easily for machine washing.  Hypo-allergenic.  Blue pillow measures 20" l x 8" w x 4" h.