There are foldable and non-foldable trolleys, and the style that can be folded multiple times will be more convenient. At present, many styles are designed to be foldable in order to be convenient to carry and use. The entire volume of the folded trolley will be smaller and storage will not take up space, and most of them are styles with a foldable chassis. Like the Xingyi trolley, the chassis adopts a hollow design that can be folded and retracted. Unlike other ordinary telescopic chassis, its appearance is more unique. After multiple folding, the trolley body is smaller. The 0.6mm iron pipe material used in this trolley tube is of higher quality, stronger and more durable.