Total waste of money
I bought this to alleviate lower back pain.  It was a TOTAL waste of money.  The foam is really cheap and stiff.  I used it all but twice.  I could have just bought a scrap of foam from the craft store!  And it didn't fit on any seat comfortably.  It was really wide and because it was so stiff, it just kinda slipped around.  I do not recommend this product.
Rating: 2 stars