Designed by the world-renowned physiotherapist Robin McKenzie, the Original McKenzie D Shaped Lumbar Roll, when used correctly, can help prevent the onset of back problems, and help reduce a user\'s existing neck and back pain by improving posture.Produced to the highest quality and specifications this D Shaped Lumbar Roll is made using high-density foam and, therefore, has a firm feel. The Original McKenzie D Shaped Lumbar Roll is recommended for use on soft furnishings such as sofas, lounge chairs etc, and is ideal for those users who require lots of support, or those with a large hollow in the lower back. Providing effective support and delivering real results, Original McKenzie Lumbar Rolls are the genuine article and are ideal for use in the home, the office or the car.