Total comfort for the big and tall. Reinforced, sturdy construction for longer life. Ultra-thick 3-3/4″ foam cushioning. Genuine black leather upholstery. Extra wide and high 22-3/4″W x 22″D seat and 21-5/8″W x 29-7/8″H back. Pneumatic 18-1/2″ to 21-1/4″ height adjustment, trigger button movable armrests for custom positioning, and knee tilt with tilt-lock mechanism will help increase overall productivity. T-Arms are height adjustable. Sturdy aluminum five blade base with dual wheel swivel casters for added comfort. Large casters to support 450 lb. weight capacity. Brand is Interion By Global Industrial. Easy assembly.