CH-535B Ergonomic Medium Back Chair (Black)

Back: PP back frame, can be tilted back up to 125°, up and down adjustable lumbar support
Seat: molded foam
Armrest: up and down adjustable PU armrest
Mechanism: 3 positions lock synchro tilt mechanism, tension adjustable
Gas lift: 85mm extended length, Class-3 gas lift
Base: 340mm plastic base+60mm nylon caster