HengFa 3D Dynamic Back-Lumbar Support Office Home Ergonomic Task Chair

Specifications and material:  Dimensions: 30.3"×17.9"×26" (W×D×H) Color: black The headrest,back,lumbar support and seat are covered by high elastic mesh; Nylon new material plastic seat back frame, no peculiar smell; 4D multifunctional Aluminum armrest with Pu armpad; The back frame support, armrest support frame, chassis support frame, front horn support frame, and armrest tube are polished finishing aluminum; Bifma passed 85mm class 4 gaslift; aluminum multi-function wire-controlled chassis; Bifma passed 350mm aluminum base; Bifma passed 65MM PU castors; About this item： The 2D headrest can be height and angle adjustable; Independent research and development of patented aluminum wire-controlled chassis, synchronized tilt and lock mechamism; The back can be adjusted up and down; 3D Automatic flexible lumbar support; The seat height and seat depth can be adjustable; 4D multifunctional armrest with PU armpad, the armrest can be up and down,angles, width,front and back adjustable; Shipping: Ships in 5-6 weeks