This posture chair is designed for sitting comfortably at your desk all day complete with a lumbar pump for increased comfort and support for your back the chair is supplied with height adjustable arms as standard and has a moulded outer back the double curved waterfall seat is height adjustable to allow optimum positioning at your desk the chair has a recommended usage time of 8 hours and is suitable for people weighing up to 23 stone posture chair with lumbar support for increased back c