I bought the harley designer ring cushion to use on the dining chair that I sit on when using the computer - I have arthritis in my pelvis and sitting for more than a few minutes hurts - the cushion eases the discomfort, as I hoped it would, but I think I really need a more suitable chair! I'd give it 5 stars, as it does what it said it would, i.e. eases the discomfort.