ASOTV - Memory Foam Supportive Lower Back Half-Moon Positioner Pillow. Use it anywhere for commuting office work travel planes and wheelchairs and more. Effectively supports legs knees lower back ankles and more and provides comfort and effective pain relief where you need it. Multi-functional half-moon positioner pillow – perfect for back and side sleepers to provide lower back pain hip pain leg pain and joint pain relief at night. High-density memory foam compile semi roll pillow provides long-lasting comfort for hours. A breathable soft cover provides ultimate comfort and prevents the pillow from overheating. It is machine washable for easy cleaning. 20.5 x 8 x 4.5 - 0.82 lb ASOTV- White