Ergoform High Back Executive ChairFully ergonomic 4 lever mechanismAdjustable armrestsAdjustable pronounced lumbar supportPolished alloy base and chrome gas cylinder optionsRachet back height adjustment, seat slide feature and adjustable lumbar support for superior ergonomic function and comfort.High Back, Mesh & Fabric Back options. AFRDI level 6, Rated160kgOptions: Black, Charcoal, Navy, Red, Blue5 Year WarrantyShipped boxed. Assembly required.