If you are employed in the construction sector or the agricultural field or in the place where there is lots of movement of goods, you will understand the importance of fixed castor. It is often installed in the machines and equipment to provide directional stability. For example, in a construction site, the workers have to carry construction materials from one place another to help the co-workers in the construction. It is difficult to carry manually so they often install the bokwiel (fixed castor) with the carrying equipment and make the movement easy.