The Teknik Office Ergo Plus Headrest Blue Fabric Executive Operator chair is one tough cookie. Certified for 24 hour use and rated up to 24 stone, you won't get a hardier contract chair for call centres, operation hubs and a variety of other office environments. It's available in Blue or Black padded fabric and has optional extras such as arms (fixed or height adjustable) or different forms of five-star base (premier aluminium pyramid base, ultra nylon pyramid or plus standard nylon) or you can opt for the non-headrest version of this chair (9600). The possibilities of customising this chair for your customer are many!. Other features include an anti-shock function, 2:1 back and seat synchronisation (5 positions), 4 position seat slide, lumbar and ratchet back height adjustment on backrest and gas lift seat height adjustment. Arms options sold separately below: Find Standard Arms here Find Step Adjustable Arms here Features and Benefits Headrest - Ideal for keeping your head and neck aligned and rested as you're sitting. Sturdy - A strong 5 wheeled base for great stability. Classic style - Great for those wanting a uniform style of seating around the office.