Features 18-gauge steel tubing in fixed and adjustable sizes with an optional backrest. The seat is full 14 in. diameter w an 11.5 in. diameter 0.5 in. vinyl pad riveted through the steel seat-pan. 0.63 in. O.D.foot rings are welded to all legs. 4 contact points on every leg for additional rigidity. 16.8 in. W x 25-33 in. H (19 lbs.). Product Specification. Assembly Instruction Work in comfort when on this attractive and durable drafting table stool that comes in fixed and adjustable sizes. 25-33 Inch Adjustable Round Padded Stool w Bracket. The seat is full 14 inches diameter w an 11 1/2" dia 1/2 inch vinyl pad riveted through the steel seat-pan. 5/8" O.D. foot rings are welded to all legs, w 4 contact points on every leg for additional rigidity.