Hidden hitch---Shaft is 2 in. Ball is 2 1/4 in 6000 lb 600 lb tongue weight No key for lock Other one--no name Shaft 2 in. Ball 2 in. 6000 lb 600 lb tongue weight The square Bumper hitch is sold The 2--in the pictures--with the balls I still have them. 15 dollars each--or 25 for both