This is the older style Saris bike rack that mounts into a Reese-type trailer hitch.  The hitch size is 1.25 inch.  The bike carriers are loosened with a hex key wrench and fold down when not in use.  Includes a hitch pin that may be locked into place.  This hitch is heavy, too heavy to ship.  Looking for a buyer someplace in the Chicagoland metro area for delivery.

Something like $40-$50 might be a fair price, depending on buyers examination.