Drafting stool offers a breathable mesh back & upholstered, cushioned seat to enhance your comfort. Padded arms adjust in height & width for a position that suits your needs. Rest your feet on the chrome footring. Functions include pneumatic seat-height adjustment, ratchet back-height adjustment & 360-degree swivel. Black, five-star nylon base is equipped with smooth-rolling casters for easy mobility. Weight capacity is 275 lb. Mid-back chair meets or exceeds BIFMA standards.