Home Set of (6) Nipples Threaded on Each End. Set includes (1) nipple each that is 2½", 3", 3½", 4", 5" & 6" long.Schedule 40 NipplesSizeSelectMaterialSelectQuantityContact Us to PurchasePRODUCT INFOChoose between 304 or 316L Stainless Steel. Additional sizes available upon request.