Stiffened spacer for the cups, which improves the driving properties, especially when cornering. Stiffens the suspension and eliminates the effect of swimming in bends. Made of aluminum. The dimensions of the struts are perfectly matched to the car model. You will not find such professionally made struts anywhere else. which improves driving characteristics, especially when cornering. Stiffens the suspension and eliminates the effect of swimming in bends. Made of aluminum. The dimensions of the struts are perfectly matched to the car model. You will not find such professionally made struts anywhere else.