▻Patented product, patent number：201630011491.X ▻SGS certified, passed ANSI BIFMA X5.1-2011 test ▻Nylon+fiber plastic back, black/white/gray options ▻Mesh back, fabric/ PU cover seat ▻2D adjustable arm/fixed arm options ▻High density molded foam ▻Synchronized mechanism with 5 lockable positions(including condition of rest) ▻Slider seat option ▻Grade 3 SGS certified gas lift ▻Φ700mm Aluminium base/nylon base options bearing capacity 1133KGS ▻ Φ2 inch PU caster SGS certified，at least 100,000 times friction ▻Swivel chair：width 660MM,seat depth 470MM，seat height 470-540MM,total height 980-1050MM Visitor chair:width 560MM,seat depth 470MM，seat height 460 MM,total height 970MM ▻Package Swivel chair：2pcs/2ctns,0.128m3/pcs, G.W:18kg/pcs Visitor chair: 2pcs/ctn,0.144m3/pcs, G.W:14kg/pcs