I wasn’t sure this cushion would work and alleviate the pain I was having due to my L4 but I have to admit – it works. I still have the sensation that there is something not aligned correctly, but I have no more pain since using this cushion. I have been using it now for about 7 days and am very pleased with the results. Worth the money. I am recommending it to a co-worker who has a similar problem. ..More