Quick overview from the supplier:
Lumi Ergonomic Office Chair CH05-40, Black, Adjustable Headrest, Lumbar Support, Breathable Mesh Back, Adjustable Armrest, Pneumatic Seat-Height Adjustment, Seat Depth Adjustment, 340mm Nylon Base, PU Caster, 100mm Class 3 Gas Lift, Weight Capacity 150 Kg
