Unlike some back cushions, this seems a little taller than a "lumbar pillow". It’s held on the back of your chair by a strap, which won’t work for everyone. I need a lumbar pillow but in this chair which is a bit too deep, I also needed something to get me a little closer to the front of the seat. This fits the bill. You can adjust the air easily (it blows up) in order to get the right firmness. ..More