SIHOO TARANTO High Back Ergonomic Chair-Black Product overall size W66 x D66 x H110-129cm Fabric mesh (backrest) Height and angle adjustable mesh headrest Foam seat cushion Up/down functional armrest Multi-functional mechanism; height-adjustable with recline/tilt-lock feature High-strength Nylon PA base Stroke 100MM Class 3 gaslift PU castor Self assembly require Made in China