Audio2000'S AST4201 Heavy-Duty Foam-Padded Seat with Adjustable Height Highly durable foam-padded seat with adjustable height; made in Taiwan, with all parts made of both high-carbon steel and the best-grade heavy-duty virgin plastic A supporting seat for almost all occasions Adjustable height from 21.0-Inch to 30.5-Inch Five different height positions Made to be portable