Operation chair model 262/sy

1)4 options of mesh color，Great elasticity , soft and durable Martindale abrasion test passed

2)Molded foam，Adopted water foaming process, environmental friendly

3)Fixed or 3D armrest for options，Up/down，back /forth，left/right

4)2 options of mechanism，simple mechanism with locking at original position, simple synchron mechanism with locking at original position,  synchron mechanism with 3 locking positions.