A great workhorse and elegant design. Constructed of hand rubbed Elm wood. Designed with easy to tilt ergonomics. Ratcheted center column with positive locking mechanism. Overall size: 21.5 x 21.5 x 67 to 89" height. Center Mast: 54.5"H. Maximum canvas: 49"H. Upper canvas support: 4.75W x 1.75D. Lower: 19"W x 3"D. Angle adjustment range: Positive: 20-degrees; Negative: 15-degrees.