Features include: ·¦Precision clutch mechanism for quiet telescoping movement · Hamilton's exclusive all steel desk with rolled edges to resist bending, reinforcing ribs on the desk face and gussets in the corner of the shelf · Heavy duty thick walled tubing · Welded and riveted steel base · Smooth operating spring loaded clutch mechanism · Adjusts from 26 to 48 inches high · Durable powder coated base, lower tube and desk with chrome plated upper tube