Ella-M(Grey frame),Health and comfort mid back ergonomic mesh office chair Material:Mesh 2) Mesh back + 2D

2) Mesh back + 2D lumbar support & nylon back frame & 2D headrest with cloth hanger

0mm thickness medium size plane mechanism with tilt & lock function & tilt tension adjustable 5) BIFMA passed CLASS 3 chrome gaslift 6) 350mm chrome metal five star base & 50mm BIFMA passed PU nylon castors 7) Quality warranty: 3 years

Function: Side cabient with computer host

2D lumbar support

Ella-M(Grey frame),Health and comfort mid back ergonomic mesh office chair Material:Mesh 2) Mesh back + 2D1) 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