You are bidding on a Brand New aftermarket drive sprocket to fit John Deere round balers.  Will fit modesl 435, 535, 466, 566, 467, 567 and a few others.  This is a double sprocket with 17 teeth on each plate and a 1 1/4" hex bore with hardened teeth, would cost 50 plus dollars at your local Deere dealer, so don't miss it. Thanks for looking and good luck.