This anti-roll bar set is made for 411 Sport users, that want to upgrade their car with a full anti-roll bar system. The set includes the pivotball system which connects to the lower wishbones, the frame of inserts for different wire thicknesses, the 2 wires 1 front front, size 1.4 and 1 for rear, also 1.4 and parts for the centering system. The longer one for rear use, which allows mounting it to the front side of the rear arm for softer anti-roll bar action. Ofcourse the full set also fits regular 411 cars, and 5 more sizes anti-roll bar wires are available as optionals.