Oleg-H, Office chair swivel computer leather office chair executive chair Material:PU 2) Mesh back + height

2) Mesh back + height adjustable padded lumbar support (+7CM) & black nylon back frame 3) Fabric padded seat with high density foam inside

6) Muti-functional mechanism with back reclining and locking at any positions function

Nylon mesh back with nylon back frame + height adjustable 2D lumbar support in height & depth with foam padded

high density foam inside & armrest3) Sample mechanism with up and down function4) BIFMA passed CLASS 3 gaslift5) 330MM aluminum base with BIFMA passed 50MM PU nylon castors

1) Mid back PU office staff chair2) Wooden back & seat with PU cover

Oleg-H, Office chair swivel computer leather office chair executive chair Material:PU 2) Mesh back + height1) High back executive office chair 2) PU padded seat & back with high density foam inside 3) 1. 2mm nice finishing chrome metal armrest with PP padded armpad 4)2. 5mm butterfly mechanism with tilt & lock function & tilt tension adjustable 5) BIFMA passed CLASS 3 chrome gaslift 6) 300mm chrome metal base & 50mm BIFMA passed PU nylon castors 7) Quality warranty: 3 years.