Stool has a 16" diameter seat with 3 1/2" thick foam that is available in 6 standard colors. The base is a durable 5-leg black composite material with (5) 2" twin wheel black nylon casters. Upgraded stool comes with a 10" x 15" padded backrest and adjusts with 360 degree control ring. 250 lbs weight capacity. **This item is dropshipped directly from the manufacturer. Please allow additional time for delivery.**