The Mount-it MI-921 combines both a heavy-duty build and a folding design, making it easier for portability and storage. The heavy-duty construction allows it to carry up to 660 lbs and features two caster wheels with 360 swivel for easier mobility in a variety of spaces. The well-built rubber wheels make for a smooth roll. Carry more at once with this heavy-duty hand cart platform and save your back from over-exertion.