The Champ Big & Tall Chair, specially designed to support big and tall frames up to 400 lbs. in all-day comfort. Features a 22 1/2"W x 20"D seat with 3" of thick foam padding. Features adjustable height seat (17"-20"), adjustable back height, and locking tilting mechanism. Generously padded and contoured back measures 28 1/2"H x 21"W. Heavy duty star base and dual-wheel casters make this chair durable and easy to move. Optional height-adjustable arms available for added comfort. TAA compliant.