... mechanism Ergonomic / Nano Mesh / Muti-Function / Executive Office ChairNano Mesh apply into chair back, aluminum alloy leg, polish finish. Fully adjustable office chair, sutiable for high ... Material :PU+MetalSeat Material :Mesh Base Function :titling / up&downLeg Size :φ320cmOther :titling lock muti-function executive office chair, mesh office chair, silla de oficina BF ...