Early aq zinc ring (YOU GET JUST ONE ZINC RING)You are bidding on volvo penta , never used zinc anode , # 875810 v-15 ring , plus 2 screws # 940203 . the outside diameter of the ring is 3 6/8 FITS EARLY OUTDRIVES 100 100B, 100S This fits early outdrives . it looks a little dirty. but it has never been used. item was in a crate along with many different zincs. if you need more than one let me know.. I will be having more anodes on auction, save big time,, Do your homework on this item before you bid , there is no refund , return or layway . dont forget to look at my other auctions. i WILL BE LISTING HUNDREDS OF ITEMS.