The trailer wheels, which are non slip, quiet and wear resistant, reducing the need for labor. COLLAPSIBLE DESIGN: This lighweigh designed hand trolley is enable to be foldable that could save enough space for ensuring you can carry it with you anytime and anywhere you want. Portable function also allows you to use it both indoor and outdoor occasions Robust and sturdy construction Adjustable quality materials with a rugged frame for easy loading of heavy loads under support. Can be used at home to carry groceries, or the office to move paper, plants and boxes.