As a seller of chairs you get what you pay for. The rental company will make more money on 1 or 2 rentals than the seller makes on the chair. With that being said, have them send you detailed photos of the clip that attaches the seat to the chair. If you are buying hundreds get a sample of one for testing. As an example, I use a heavier frame and a much wider clip than other s do because i not only sell the chairs, but rent them as well. There is no such thing as a 2.99 chair, Go on alibaba, get a quote on chiars from overseas and you will find direct in quantities of 5,000 or more that chair is $5.50 to 6.00, plus ocean freight.