These are the RPM Black Rear Arms for Associated RC10GT, T2, and 10T trucks. Broken A-arms will be a thing of the past when you install a set of RPM A-arms! Designed to be virtually indestructible, RPM guarantees you will never break another A-arm again! In addition, RPM arms wear better & longer than anything else available! Molded in our trademark blend of nylons and are sold in either blue or black.