The high quality steel frame and construction and add durability, strength and support to the design. The breathable mesh back is designed to ensure you stay cool and comfortable throughout the day, letting you focus on the job at hand. 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. 40.16" H x 18.9" W x 22.45" D Features: Durable frame construction with high grade steel gives this piece a long lasting and steady base. Features swivel function that allows user a wide range of mobility. Polished aluminum base and armrests The back of the chair is made of mesh.