Hook is used to hang from the top of the panel for hanging paintings or something else. This is a hook that can hang things for double sides, and the other side on the other side of the wall can also be used to hang things. This is the biggest point different from WB261-10. The small component can be hung at anywhere of the top of the panel. If you have the demand for the flexible use, LingTong will provide the component separately or on the extrusion and send them for you together. It weighs 0.038kg per each. It is made of steel. Because of its convenient usage, making hanging things easier. Its width is 25mm. If there are some relative needs, LingTong will provide other best service for you in exhibition construction.