Lisa-H，high back ergonomic mesh office chair full backrest is 6CM height adjustable $50-$100 5mm thickness butterfly tilt&lock mechanism

5mm thickness butterfly tilt&lock mechanism 6) BIFMA passed CLASS 3 gaslift 7) BIFMA passed 330mm white nylon base with BIFMA passed 60mm nylon PU castors

6) BIFMA passed 320mm nylon base with BIFMA passed 50mm PU nylon castors

2) Full backrest can be height adjustable

Nylon mesh back with nylon back frame in ergonomic design3) Double layer nylon mesh seat with injection foam for seat front inside + nylon seat frame4) Seperated back lumbar support with automatically rebound forward and backward

Lisa-H，high back ergonomic mesh office chair full backrest is 6CM height adjustable $50-$100 5mm thickness butterfly tilt&lock mechanism1) High back ergonomic mesh office chair with adjustable headrest in height (+7CM) & angle; 2) BACK: Full backrest is 6CM height adjustable; Mesh back with nylon back frame + plastic fixed lumbar support; 3) SEAT: Fabric padded seat with high density foam inside; 4) ARMREST: Height adjustable armrest with soft PU armpad4) GASLIFT: BIFMA passed CLASS 3 chrome gaslift5) MECHANISM: Multi functional mechanism with back reclining & locking at any positions