Traxxas replacement pivot ball and dust cap boot set for the Traxxas Revo, E-Revo and T-Maxx 3.3 vehicles. Constructed of blue and black nylon and rubber. This package includes; Four Blue Rubber Pivot Ball Boots Four Black Dust Boot Retainer Four Blue Notched Dust Boot Retainer Four Blue Rubber Boot Plugs Four nylon Pivot Ball Retainers Instruction sheet