Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Red Ab Chair

After finally figuring out how to put it together (the directions were not very good) I found an old belt to use in place of the bar that should have come with it and was able to use the chair. The bar that is shown in the advertisement, the one on the top that you hold on to, did not come with the chair.I give the chair 4 stars because the chair does offer some ab resistence when you use it regularly, but only if you have something at the top to grasp. Using the handles on the side made my neck ache. If all the pieces were included it would have been 5 stars.