Versatile mesh chair to suit any office environment Physio approved Certified for 24 hour use (BS 5459-2:2000) Integral head rest allows support from head to toe Breathable floating back design adds a modern twist Supplied with height adjustable arms Sturdy synchro mechanism with integrated torsion control allowing the user to adjust the chair according to their weight Features a class 4 gas lift Stylish grey five star base Low fire retardancy Finished in black 2 year warranty