This chair has so much design style we love it and it's also so easy to assemble. As we try and encourage sit-stand solutions to our customers do they really want to spend a fortune on a chair they might only spend an hour or two a day in. We say no. So maybe pair some of these chairs with active ergonomic stools in your office and let people swap and share seating as the day progresses. As usual the chair has height and tilt adjustment. The arms are fixed. For a break from black try the grey frame with green seat. Looks great.