This extra large Body Kozi is perfect for larger areas like back and hips. Fold it around your hips or back and let the moist heat penetrate your sore areas. Great for chronic pain. Because of the size, it can wrap around both knees. Divided into17 pockets for smoothness and flexibility so you can surround yourself with comforting relief. Removable pillow case for easy washing, spare pillow cases also available.