Mahymayi Robotto 608 Medium Back Ergonomic Mesh Chair Grey! Your Work smart breathable screen back chair combines durable, sturdy aesthetic with ultimate comfort. A sharply designed nylon frame braces a mesh screen back that delicately cradles the curves of your spine with built-in lumbar support. You'll have full control over your chair with the accommodating range of 2-1 synchro locking tilt control with adjustable tilt tension. One-touch pneumatic seat height adjustment and padded flipping arms with silver accents provide further customization of a chair designed with up-to-the-minute technology. A heavy-duty base with silver accents and dual wheel carpet casters completes a sleek home or office addition accomplished with style and professionalism.   Ergonomic chair back Curved surface fits the human body curve, 102-126° reclining adjustment, sitting comfort. Ergonomic armrest 3.7in lifting space, height can be adjusted, comfortable support your arms. Adjustable armrests Front and back adjustment, 36 ° rotation, lift up and down. Chair legs Made of high-strength heavy material, compression bearing and stable support. Casters PU edge, quite smooth and not scraping the floor. Specifications Dimensions: W47cms x D52cms x H118-128cms - Adjustable armrest with 45-degree twist function - Epoxy aluminum base - Mesh arm pad - Double wheel castors