The TygerClaw executive high-back PU leather office chair is very suitable for who need comfort when sitting in office or working station. This office chair comes with multiple functions which provide maximum support, ease and comfort to the user. This chair is upholstered in soft and durable PU Leather material for better comfort. The seat height can be easily and effectively adjusted by pneumatic gas lift and 360-degree swivel wheels makes this chair more flexible in the working space. With the lumbar support of this chair, you can maintain your inward natural curvature of the lower spine for long working day. Upholstered in soft and durable Smooth Black PolyUrethane(PU) & PolyVinyl Chloride(PVC) Mesh Built in lumbar support to maintain proper sitting posture Butterfly mechanism Height adjustment by gas lift,100mm gaslift Cross foot Flexible Nylon with 5 double safety wheels 320 mm Nylon Base Height of the insulation: 49 - 59 cm, width of the insulation: 53 cm, depth of the insulation: 52 cm, Height of the backrest: 85 cm 360 degree swivel castor and Chair can work gently on the floor Excellent for office, work station and cubical area TygerClaw Executive High-Back Gaming Style Chair - Black