Paktron Products 10-4217 Rigid 2-1/2" Hitch Bar Skid Roller - Set of 2 Hitch mount skid wheels Designed to bolt to the motorhome's hitch bar No drilling or welding is required, only two wrenches are needed Ideal for use on all sizes and types of motorhomes, including rear engine models 3" x 2" solid steel roller bearing rollers with zerk axles for easy lubrication