Lunette Ring Lock, For Use With 1XUC9, 6ZAR8 Trailer Pintle Hooks and Receiver Mount AccessoriesAll items are rust-resistant with black finish. Ball and pintle 2PJ97 uses a 2" dia. ball. Mounting plate 2PU10 is 7-1/2" x 5" and can be used with 2PJ97, 2PJ98, 2PJ99, and 1XUC9. Reducer Sleeve 3DPV2 reduces 2-1/2" Class V receiver opening to 2". Allows hitch-mounted accessories to be used with Class V receivers.