Take your work hours to new heights and depths when utilizing this Riley office chair from OSP Home Furnishings. Oversized carpet casters have dual wheels for easy movement. Breathable mesh seat and back Built-in lumbar support One-touch pneumatic seat height adjustment Padded flip arms with silver accents base with oversized dual wheel carpet casters Materials Mesh, Nylon. Weight capacity 250 Dimensions 37.50-41.25 inches high x 24.25 inches wide x 23.75 inches deep Seat dimensions 17.75-21.50 inches high x 19.50 inches wide x 19.75 inches deep Back size 22 inches high x 19.25 inches wide Assembly Required Color Green.