1. Upholstery: half leather (front is leather, back is PVC).
2. Foam: two layer high density foam.
3. Plywood: 15mm thickness double layers banded plywood, formed with high frequency pressure.
4. Armrest: PU armrest with foam and PVC upholstery.
5. Mechanism: knee tilt mechanism, the maximum tilting angle is 21 degree. Tilt can be locked at upright position.
6. Seat height adjustment: gas lift with stroke 80mm (if necessary, it can be changed to 120mm stroke gas lift).
1. Base: 350mm (radius) nylon base consist of 30% glass fiber and 70% nylon. 2. Castor: 50mm heavy duty, durable test for 50000 cycles. 3. Specification: (1) (W) 680 x (D) 720 x (back height): 1200-1270mm. (2) Seat height: 480-550mm (tolerance: ±20mm).