Makes working at my desk pain free such a simple thing, but so effective in making time spent at my desk pain-free. We have bought 2 now because both my husband and I can't go without them. Great for both relieving back pain from sitting, and also great at improving chair comfort overall.

EFFECTIVE RELIEF WHILE SITTING I purchased my”tractor seat” several years ago. MRIs showed L4-S1 stenosis and various disc issues. Using this seat has given relief while sitting in the car. It is very much worth having.

misleading advertising I am sure this product has helped many people sit in office chairs, but... Misleading advertising. The pictures are confusing, and show people in twisted yoga poses. And they show a backjoy sitting in the seat of a car with no person. After purchasing one, I found through customer service that although the website says "Can be used in any chair", they are NOT meant to be used in a car or in any seat where your back is against the back of the seat, such as a sofa or recliner. Since I only wanted it for my car, this was worthless.

Doesn't perform as advertised Used it for 2-3 weeks and it helps just a bit. Never like shown in promotional videos, which are really exaggerated. It may be improved by giving it some height in the back or more slanted, and using a more sturdy material. Not pleased and would not recommend. Too expensive for something that doesn't perform as advertised.

Making classes comfortable Backjoy seats make all day classes comfortable regardless of the quality of the chair seats. This is a great advantage for needleworkers. They also greatly improve long plane rides.