All your Hitch Cover & License Plate Frame Accessories
A Receiver Lock or Receiver Pin can be used to attach your Hula Hitch to the receptacle part of your trailer hitch (attached to a vehicle). The most common receiver pins are 1/2" and 5/8" in diameter.
Class II receiver hitches have 1 1/4" receptacles and use 1/2" pins.
Class III, IV and V receiver hitches have 2" receptacles and use 5/8" pins.