But when I received this cushion I put it right to work, and I could tell almost immediately that this was what had been missing from my normal office chair. See that little groove at the back? You'll want to make sure that groove is situated over your tailbone as you sit on the cushion because that's what alleviates pressure on your spine, which is what causes muscle fatigue and aches and pains.
It's a great investment if you spend a lot of time in your chair. It's portable too, so take it along for seminars and meetings. You'll be the envy of all your associates!