0-TRA5116 Traxxas Ball Bearing, 5x11x4mm: TMX 3.3, Revo, SLY, SLH (2) <p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Rubber-sealed ball bearings provide smooth, long-lasting and precise driving. Especially in dirt environments, rubber-sealed ball bearings provide the ultimate protection. </font></p>