▻ANSI BIFMA Quality verification standard ▻nylon+fiber plastic back frame in black color, with adjustable lumbar, swing back function ▻Adjustable headrest ▻Mesh back ,fabric seat
▻2D adjustable arm,grade 6,PU soft armrest top
▻high density molded foam
▻Multi-lock mechanism,3 locking positions ▻holder between back and mechanism:chrome
▻Back angle :100°~140°
▻Class 3 SGS certified gas lift 80MM
▻¢700MM 5 star aluminium base SGS certified ,at least 98,000 times friction