Set of 2 Inertia Racing Products V2  BRP Rear wheel adapters.  The Rears will fill the Losi 5ive, DBXL and Mini WRC and Kraken Vekta. *note The front HPI assembly is different. You will need one set of Rear and one set of front for an HPI Baja. These assemblies do not include spacers or the outside flange plates.  These can be purchased separately. They are not needed but add an element of looks and added rigidity to the wheels.  This is the new V2 version of his BRP adapters which use a clamp on design to the axle rather than a pin that can snap or break.