These covered aluminum 17mm wheel nuts are designed for Losi's 8IGHT™ 2.0 Buggy, 8IGHT-T™ 2.0 Truggy and LST XXL™ Monster Truck, or any other 1/8-scale off-road buggy or truggy that uses a traditional 17mm wheel nut/axle design. The covered design eliminates dirt from getting into the axle.