[B2308] Ergonomic Breathable Mesh Comfortable Office Chair

1) Mid back ergonomic mesh office chair
2) Full nylon mesh back & seat + Grey PP with fiber back frame
3) 2D lumbar support can height adj. & depth adj.
4) Fixed armrest
5) 2.5mm thickness butterfly tilt & lock mechanism
6) BIFMA passed CLASS 3 gaslift
7) 310mm grey base + BIFMA passed 55mm PU nylon castors