I originally purchased this from Posturite, along with my fabulous ergonomic office chair, for use in my home office but I now have an electronic sit-stand desk. The product is unused and the box is unopened. I have used an identical item at a previous job for over 5 years and they are fabulous for people who have back problems that do not allow them to remain in one position throughout their working day. These products retail for a much higher sum than I am offering this one for, so I am not expecting this to stay on sale for long at this price. Please feel free to contact me if you have any more questions.