High quality different meterialLuxury and fashionable designAttractive and endurableCompetitive priceEasy to move and swivel with wheelsModern and comfort office chairTo bulid the best products for you. ZHUOPIN OFFICE FUNITUREOur certification:Feature:1. Chrome iron frame, leather or PU bracket.2. Adjustable seat-height , arm-height and back tilt.3. Aluminium base with nylon castors.Material:1. SGS Tested & Approved materials.2. Grade A chrome iron frame and aluminium base.3. BIMFA approved pneumatic seat-height adjustment mechanism.Dimension:Chair: W48*D60*H118 cmPackage Size: ZM-A213: 91*63*51cm Mountings: 63*63*25cm 3PCS/box ZM-B213: 82*68*53cm Mountings: 63*63*34cm 4PCS/box ZV-B213: 82*68*53cm Frame inside box 4PCS/boxPictures: Working Flow: