1. Back frame + headrest: High-quality PA+fiber engineering material
2. Fabric: High-quality mesh fabric specially designed for office chairs
3. Seat frame: Seat shell + wooden board + 55 density high-resilience environmentally friendly shaping cotton
4. Armrest: 2D adjustable armrest
5. Base: Three-gear lockable base
6. Gas rod: S3 level 85-6 cooperative strong gas rod
7. Foot frame: A/B style: 340# nylon foot frame; D style: 2.0 thickness, chrome-plated bow frame
8. Wheels: Φ60 King card black PU wheels (silent)