Metal and engineered wood frame. Solid beechwood arms. Metal swivel base. 5 caster wheels. Adjustable seat height. Care should be taken when placing this chair directly on wooden floors; to prevent scratches, use a protective mat. GREENGUARD Gold Certified. This low-emitting product has been screened for over 10,000 chemicals and VOCs. This contract-grade item is manufactured to meet the demands of commercial use in addition to residential. See more. Made in China.