Office Mid- back chair, green mesh fabric back& black mesh seat for finishing. Adjustable armrests with PU top arm,nylon leg Office Mid-back chair, Geen mesh fabric back& black mesh seat for finishing.Adjustable armrests with PU top arm,Nyon leg with castors.Functional mechanism: swivel,tilt,up & down,lock at any position.Size: L590*W635*H970mm office chair specification