Bought this for my wife who has a bad back. The idea is a good one and this chair functions nicely in the upright position. However, when you recline it is impossible to stay there. Two wings are attached to the armrests and appear to be some sort of friction lock. Whatever they are they do not work. Any forward movement finds you speeding towards the upright position. Not good for someone whose back is already injured. For those who can put up with this malfunction the chair is decent at an attractive price. BUT, if your back is not the best you might want to look further.