Anda Seat Phantom 4 Pro Office Gaming Chair, Ergonomic Dynamic Lumbar Support, High Back Reclining 90-135 Degrees, Magnetic Head Pillow, 3D 360 Degree Rotating Armrests, Height Adjustable, Black PVC, AD18YSDC-72-BD-PV-B02. Key features: Dynamic Auto-Tracking Lumbar, 15 Locking Positions, 0-95mm Range; High-Density Molded 3.4lb/ft3 Foam, Wide Seat Support; 90-135 Degrees Recline, 15 Degrees Rocking; SGS Class-4 Gas Lift, 3.94 inch Height Adjustment, 60mm Casters. Available colours/variants: Grey Fabric.