Riva-H, Hot Selling High Back Swivel Office Ergonomic Chair Black Cobain series 4) Weight balance mechanism with

4) Weight balance mechanism with back reclining &5 posiotions mechanism

4) ARMREST: Armpad adjustable(forward&backward)

2) Full nylon mesh back & seat + Grey PP with fiber back frame

back & seat change to PU +$3

1) Mid back PU excutive office chair

Riva-H, Hot Selling High Back Swivel Office Ergonomic Chair Black Cobain series 4) Weight balance mechanism with1) Passed EN1335 test2) High back office chair with height adjustable padded headrest & black color plastic cover3) Fabric padded back with high density foam inside, can be height adjustable, black color back plastic cover with black grey white color decoration4) Black color 3D armrest with soft PU armpad5) Fabric padded seat with high density foam inside + black color plastic cover6) Multi functional mechanism with back reclining & 3 postions