This chip easily enables you to change the angle of one's FRP dish and roller. Even if you over tighten the components, the included metal adjuster chip's will never be effortlessly deformed. As a result of this, the roller modification angle will stay consistent. Since it gets the same width as a 2mm nut, it can be positioned with a wrench for safe installation. 2-degree 4 x 6.5mm Chip x4 3-degree 4 x 6.5mm Chip x4 Wrench x1 appropriate for Mini 4WD & Mini 4WD PRO cars.