A cardboard box is a bunch of rectangles that combine together folding it to mold it as one to make it into a container. On the sides there are small slits that have a handle to grasp it on, these are lines that come to a point in the top-middle of the side rectangles.
Related to Pudełko kartonowe Icon
Related icons are the icons with matching tags, as well as all e-handel icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors