The Onyx chair is a fresh, contemporary office chair that offers a range of inspired features such as a multi-functional asynchronous mechanism with multiple adjustments and a contoured foam seat and back for extra support and comfort. The Onyx is a top choice for a posture task chair. Available in black or blue fabric and bonded leather upholstery options. Optional headrest variant available. FEATURES : Material : Fabric Finish : Black Seat slide Contoured foam Ratchet back height adjustment Adjustable arms 3 lever mechanism Pump up lumber Brushed aluminium base UK crib 5 foam and fabric Gas lift tested up to 135kg Usage: Task 24/7 Most Stylish and Unique piece of furniture Matching furniture available Images shown are for illustration purpose only Available at an affordable price DIMENSIONS : Seat Width : 450mm Seat Depth : 470-540mm Seat Height : 490-590mm Back Width : 430mm Back Height : 670-850mm Arm Width : 445mm Arm Height : 660-760mm Overall Width : 610mm Overall Depth : 670mm Overall Height : 1210mm