product description:high end furniture fabric chair for max comfort with a head pillow, built in lumbar adjustment and 4d armrests. arozzi?s signature ergonomic design makes using this chair easier on your back and posture for longer periods of use. the arozzi primo comes with an adjustable internal lumbar support which is controlled by a knob on the side of the backrest, as well as a completely new type of neck pillow which is more supportive and ergonomic. the premium woven fabric material is of the highest quality upholstery fabric with a soft, smooth finish! the primo?s frame is padded with a pliant foam that has density of 70 kg/m? for the seat and 65 kg/m? for the backrest so you can sink into the seat in comfort and provide hours of proper support. the arozzi primo has a new and improved molded foam mix. it will give you extreme comfort and great support. built to achieve a firmness that is beneficial for your posture, and a durability that is unmatched. the armrests are 4-dimensional adjustable, moving with an easy push of a few buttons. with the increased adjustability, your forearms and elbows get the support and comfort while you are working or playing hard during long periods. working hard and need a rest? recline the backrest at 4? lockable increments that goes up to 145?. find the right angle for you that compliments your body and posture! the backrest have an adjustable internal lumbar support which is controlled by a knob on the side of the backrest. the chair can be locked in a fixed upright position or can be unlocked to freely tilt back and forth in a rocking motion up to 12?. use the tension adjustment wheel underneath the seat to set the desired resistance. the primo has a wheel base made out of aluminum, making it extremely durable but also giving it a clean and metallic look.featureswoven fabric materialbuilt in adjustable lumbar support systemadjustable height gas spring that supports up to 145kg/ 320 lbslarge and spacious seat and backreststurdy metal frame and aluminium wheel basepro locking tilt mechanism & 4d armrestslarge premium casters