Aluminum anti-roll bar collars remove play from the front side and back anti-roll bar wires. Smart design permits the collars to be effortlessly taken out of the cable; the 2.8 mm collars fit on cables with diameter of 2.8mm and 3.0mm, can be used with #333441 aluminum collars on NT1 or RX8 vehicles. Pair of 2 collars and set screws.