Desks & desk chairs

A mechanical arm in a laboratory slams a weighted bag on the sturdy seat a white chair with a tall, mesh back, adjustable armrests, and a headrest. A man in an office leans back in a black version of the chair. In a chair with a grey, padded seat, an oval backrest, and white, height-adjustable armrests, a woman pushes away from her desk. She and the man glide over to another seated co-worker on their chairs' five castors. A machine in the laboratory pushes the arms of the grey chair down and out. The three co-workers roll back from each other, then the woman pushes the man across the office in his chair. A line of four office chairs with in-built lumbar support and tilting backrests.