This is a set of HPI Wheel Bead Lock Rings and are intended for use with the HPI Baja series vehicles. Protect the tires on your Baja 5B with these new heavy duty bead lock rings! These rings are primarily intended for use on the rear wheels, but they can also be used on the front wheels. This updated design bolts onto all existing Baja 5B wheels. Each package contains two inner and two outer rings with mounting hardware, enough to do a pair of wheels.