This is the Hot Racing aluminum one degree toe in rear lower arm mount for the micro tFeatures: aluminum construction anodized silver in color CNC machinedIncludes: one aluminum rear lower arm mountrequirements: installation into vehicleuse on med-traction surfaces only. these mounts will reduce some stability on slippery surfaces. but this will increase top speed for racing on road tracks. if want drag racing order mct10z08, or mct10z06.This item is intended for these models: HPI NitroSAVAGE 21, 25, SS, or 4.6LosiXXX-NT truck