Aluminum anti-roll bar collars prevent play through front part and back anti-roll club cables. Smart design enables the collars become effortlessly taken out of the cable; the 2.8 mm collars fit on wires with diameter of 2.8mm and 3.0mm, is needed with #333441 aluminum collars on NT1 or RX8 automobiles. Group of 2 collars and set screws.