ergonomic office chair with seat

tilt and double backrest,PP

frame,mesh material for back,mesh/foam material for seat,2D armrest,class 3 standard

gas lift,330mm PP base,50mm

nylon casters,with headrest pillow and hanger,if change to white frame,it need to add ￥15,if with mesh seat,it need to add ￥

50,if with footrest,need to add ￥

25,if change to 3D armrest,need

to add ￥25,if with sitting depth

adjustment,need to add ￥25,if change to steel base ,need to add ￥25,if change to aluminum

base,need to add ￥35