AVID makes your life better (and your ride cooler) once again with our fresh approach on a traditional aluminum ball stud washer by introducing a single chamfered design for your offroad or touring car so that you may more easily see what the washer thickness is on your vehicle. These precision machined aluminum washers won't crush or change thickness when clamped. The "Halves Set" includes 4/ea of 0.5, 1.0, 1.5, and 2.0mm washers so you can finely tune your settings.