5 inch D-Shaped Spinal Lumbar Roll5 inch D Shaped Spinal Lumbar Roll The 5 inch x 11 inch D Shaped lumbar roll provides the support you need where you need it. The lumbar support can be used in home, office or car. They are useful to people who spend long periods driving, who often suffer from lower back problems. The circular shape roll is usually of most benefit to those users who have a particularly pronounced lordosis and require a little extra support to fit snugly. The easily