▻Patented product, patent number：ZL 201830027294.6 ▻ ANSI BIFMA X5.1-2011 test standard ▻PP+fiber plastic back, black/white/gray options ▻Mesh back, fabric/ PU cover seat ▻2Dadjustable arm/fixed arm options ▻High density molded foam ▻Multi-locked mechanism/tilt mechanism options ▻Grade 3 SGS certified gas lift ▻Φ660mm Aluminium base/nylon base options bearing capacity 1133KGS ▻ Φ2 inch PU caster SGS certified，at least 100,000 times friction ▻Product Size Swivel chair：width 580MM,seat depth 500MM，seat height 430-510MM,total height 960-1030MM Visitor chair:width 580MM,seat depth 480MM,total height 990MM ▻ Package Swivel chair: 2pcs/ctn,0.12m3/pcs, G.W:13kg/pcs Visitor chair：2pcs/1ctn,0.09m3/pcs, G.W:11kg/pcs