Mahmayi Isu 95550 High Back Ergonomic Mesh Office Chair with Draft Kit (Low Back, Black) Featuring densely knitted mesh backrest, this mesh office chair allows better airflow, accelerating heat and moisture dissipation. Mid-back design supports your spine's natural curve and protects your lower and middle back as it prompts you to sit straight. Extremely Good Air Permeability The comfortable drafting chair with mesh back, will promote air circulation, allowing you to sit cozily for long hours. Multi-function Adjustment Adjustable seat height and foot ring can be easily adjusted up and down to ensure you find a good seated position. Comfortable Features This tall table chair swivel has a full 360° for reaching and moving between different areas around you, allowing you to sit comfortable with a suitable position to improve your posture and overall health while working. The durable nylon base is heavy duty for long lasting use. Smooth Rolling Casters Our drafting chair comes with safe, multi-direction casters that allow you to easily move the chair around with zero effort. Unrivaled Quality Designed and built using only high-quality material and mechanical structure.