Dot operator seating by Komac, one of the UK's premium seating manufacturers Komac is a carbon neutral company maintaining an environmental policy of reducing, reusing & recycling Manufactured in the UK by experienced highly skilled craftsmen Carefully selected high quality materials are used throughout Dot entry level operator seating without compromise on quality or functionality High back chair offers a contoured backrest & seat pad for a comfortable sitting experience Durable polypropylene seat & backrest outer in black finish Ratchet back height adjustment ensures you feel supported while you sit Choose from PCB, Independent or Synchro mechanism Optional seat slide adjusts seat depth to user&8217;s body enhancing comfort & ergonomics Optional inflatable lumbar offers lumbar support by means of an adjustable airbag in the backrest Gas height seat adjustment sets the chair at the users optimum working height Waterfall front seat eases pressure on the thighs & helps maintain good circulation Choose from optional fixed or adjustable height arms Sturdy 5 star base in black polypropylene finish Set on high quality easy glide castors High quality CMHR foams are used throughout Beautifully upholstered inhouse by expert machinists Upholstered in a choice of 25 fabulous fabrics to help you create a unique interior space Recommended for use 8 hours per day 5 year manufacturers guarantee Delivered & assembled for a truly professional finish. We will even remove the packaging for recycling PCB Mechanism Permanent Contact Backrest Allows seat height adjustment & the back rest to be adjusted for rake angle by means of a lever. The desired angle is located & then locked off or it can be left free floating Independent Mechanism You can fix the angle of the back rest or leave it free floating i.e. in &8216;permanent contact&8217; with your back, Independent seat adjustment lockable in various positions. Also features body weight tension adjustment Synchro Mechanism Fix or free float the angle of the seat & back rest together usually in a ratio of 1:2. So every 1 degree the seat tilts the back tilts 2 We have selected the most popular fabric colours from each range however many other fabric brands & colours are available. Please call us for more information & prices Your furniture is made to order especially for you & cannot be cancelled once manufacturing has commenced. Free fabric samples are available to help you make your selection. Please order them if you are unsure of colours, textures or designs. These products are non returnable unless damaged or faulty