This professional, ergonomic office chair can be tailored for your comfort and provides a supportive seat as you work with lumbar support. Sleek and professional ergonomic office chair Adjustable lumbar support for lower back comfort Gas lift seat with adjustable seat slide up to 5cm Back tilt with 4 position lock and adjustable tension Headrest with adjustable height and angle Polished aluminium base with castor wheels Work comfortably with the Ergolux Emerson Office Chair (Black Frame, Black) that incorporates science into style. Ergonomic support Set up your workstation correctly with an ergonomic chair that has adjustable features to provide lumbar support in the lower back, a curved design for the upper back and full cranial support with an adjustable headrest. All-day comfort Featuring mesh-knit upholstery, cushioned padding, smooth castor wheels and a back tilt, this chair provides all-day comfort, allowing for air to circulate as you work as well as mobility. Professional appearance Whether it’s for the home or office, this chair will set a professional atmosphere with its sleek silhouette that blends contemporary style with science.