Eccentric bushing for I.A.C. (Integrated Adjustable Caster). 2° setting (identified by 2 dots) allows for either +2° or -2° caster adjustment depending on the orientation of the bushing. Made from Hudy Spring Steel™. Set of 2. (click to enlarge) The V2 Eccentric bushings have a milled out slots which will enable the screws to anchor the, thus preventing the bushings from turning in extreme racing conditions.