336-P-AA3DK-BLK Arms: Included, Seat Color: None (Black Plastic), Drafting Kit: Included Features: -Built-in lumbar support.-Stain-resistant fabric.-Molded polypropylene back.-Triple curve seat design.-7 position adjustable arms.-360 degree swivel function.-27" 5-star base.-Seat cushions are replaceable.-Gas lift seat height.-Meets or exceeds ANSI/BIFMA standards. Dimensions: -Seat height: 24.25" - 27.75"H.