These are the RPM Blue A-Arms for all versions of the TRA T-Maxx. Optional Arms that replace the stock. Blue in color Plastic construction (1) Upper Arm (1) Lower Arm (2) RPM Decals Installation, NOTE-four packages are required to replace all A-arms Length: 5" (127mm) Width: 3-1/8" (79mm) Thickness: 0.33" (8.4mm) EEW 6/27/06 ir/jxs updt jxs 05/12/10 &