The Orca chair is a stylish and ideal chair for any type of work environment. The seamless moulded foam seat and mesh back provide the ultimate comfort and breathability | The built-in F020S synchronised mechanism - 4 locking positions, a seat slider and 3D adjustable arms - allows for the chair to be set to the users' preference to further re-enforcing comfortability, support and user-friendliness | Black Korean High Elastic Mesh Back Rest & Black Fabric Upholstered Seat Pan | 80mm thick moulded foam seat | Polished Aluminium J-Bar | Ratchet Back Rest Adjustment Which Allows The Lumbar To Adjust In Dual Direction - Lumbar & Back Rest Have an 80mm Adjustment Stroke | Black 5 Star Base With Black 60/25 PU Castors | Designed In Scandinavia | 135kg Weight Rating | Backed by a 10 Years warranty