Draw Bar Box

Trolley case refers to a suitcase with a trolley and rollers. It is widely used because of its convenient use. At the same time, the pull rod box is also equipped with a pull rod, which can be divided into single tube pull rod and double tube pull rod, and the tube of the pull rod can also be divided into square tube and round tube, so as to facilitate dragging during walking and greatly reduce the burden. The trolley box can be carried or dragged. The wheels of the trolley box we usually use are basically located at the bottom of the box, and modern people have designed a new form of trolley box. The box is designed into a cylindrical shape, and the wheels are wrapped outside the box. This roller design makes this trolley box better adapt to different terrain. If we directly pull the box, we can easily go up and down the stairs. In 2012, cloth boxes, ABS Hard boxes, suitcases and PCs were the main materials, and the usability was divided into three categories: directional wheels, universal wheels and the latest removable universal wheel pull rod boxes.