Full-sized chair sitting comfort in a compact and portable bundle: Carries easily over shoulder with adjustable shoulder strap, Opens instantly into a stool or comfy chair. Extra strong aluminum frame supports 250 lbs with ease. Multi-ply seat supports uniformly and firmly.... Seat heights of 16", 19", 22" are available..... The 16" seat height Chair fits anyone and we believe it is the lightest and most compact chair ever made. The 19" seat height Chair is best for use with full-sized tables like Roll-a-Table®, and the 22" seat height Chair is available through special order for people who are over 74" tall. Email email@example.com if you are interested in the 22" seat height Roll-a-Chair®.