Materials: 1. Backrest: Heatless Taiwan Mesh(TW-18B). 2. Seat: Vinyl leather with high elastic sponge. 3. Base: Black nylon star base. 4. Castor: Black nylon castors. 5. Lumbar cushion: Oblong shape fabric with sponge. 6. Lumbar support: Silver sprayed aluminum. 7. Armrest: Vinyl leather cover. Functions: 1. Mechanism: Manual-controled Synchronized, multi-angle tilt locked. Backrest tension adjustable. 2. Lumbar cushion: Adjustable(up & down) 3. Seat height: Adjustable(up & down) 4. Armrest: Height adjustable.
