NEW Factory Trailer Hitch Receiver Cover Plug for 2" Acura Protect and extend the life of your trailer hitch from the elements with style. With this Durable black rubber hitch cover. Prevents rust build up, inhibits debris, dirt, mud, and moisture etc. from entering the hitch and making it difficult to use. Fits any 2" Receiver Tube. Quick and easy installation takes only seconds. No hardware (No Pins or Clips needed). Universal fit to any 2" Class 3 III and 4 IV Receivers. Dimensions: For 2" Hitch opening 3 x 3 x 1.5 x 2" To determine the Size of your trailer hitch, Measure the Height and Width of its opening. (Inner Diameter)