The molded industrial grade silver plastic is durable, strong, and resists moisture The breathable mesh back is designed to ensure you stay cool and comfortable throughout the day, letting you focus on the job at hand. The seat is height adjustable, so you can customize it how you like. Arms are stationary in a fixed position Features lumbar support so that you're fully supported and comfortable. Designed with a combination of practicality and good looks, this chair is just what you need to complete your office or home office. 39.18" H x 26.38" W x 22.05" D Features: Features a Butterfly mechanism with one locking position. Great for Office use or home office use. Includes caster wheels so chair will roll for convenience. Modern White Mesh seat and back Rolling Office or Desk Chair. The back of the chair is made of mesh. Utilizes BIFMA approved components.