Dual action cushion is scientifically designed to relieve and prevent back pain, numb buttocks and other discomforts associated with sitting. The wedge shape tilts the pelvis forward to restore the spine’s natural lumbar curve while the cutout section reduces pressure on and within the lower spinal disk. This is a fine cushion! Back-pain has edged out the common cold as the primary reason for lost work time. Persons who sit for long periods, with pressure on the end of their spine (tailbone), risk developing herniated discs and other back problems. Sitting increases the pressure on your spinal discs two to three times over the pressure caused by standing. This can result in severe and chronic lower back-pain.