The high quality steel frame and construction and add durability, strength and support to the design. Cultivate a healthier posture this chair that lets you instantly fine-tune the height of your seat according to the height of your table, so you can minimize slouching and posture-related ailments such as neck/shoulder strains and backaches. The design includes lumbar support, which improves healthy posture and keeps the spine in the correct alignment. Furnish you office or home office in comfort and style with this high quality office chair. 36" H x 26" W x 26" D