Oversized 14.1in. dia. vinyl seat provides a spacious seating area with soft foam padding for added comfort Swivels 360 degrees to offer flexibility, easy access and seating comfort Hydraulic adjustment lever allows you to easily adjust the seat height from 27.5in. to 32in.H using just 1 hand Extra-heavy-duty steel frame with chrome finish holds up to 400 lbs. Bottom ring serves as a footrest and adds rigidity and strength