Sleep more comfortably with this uniquely designed pillow. The Knee Separator Pillow eases pain in the back, legs, hips, and knees by maintaining proper spinal alignment. Knee Separator Pillow Features: Eases pain in the back, legs, hips, and knees. Maintains proper spinal alignment. Adjustable strap secures pillow to leg. Knee Separator Pillow Specifications: Removable washable cover. Measures: 7 x 5 inches. Non returnable if packaging is opened.