opal task chair -black Lead Time – Stocked – Check with us for availability Warranty – 5 years Dimensions – Seat – 530mmW x 520-550mmD x 460-560mmH Back – 490mmW x 600mmH Synchro Mechanism with 3 Lock Position Flexing Lumbar Support Seat Depth Slider Full Breathable Mesh Skin High Density Contoured Foam Upholstered Seat 3D Arms 60mm Soft Compound Castors 110kg Weight Rating *Options – Draughting Kit.