These genuine Seachoice Spare Eyes are direct replacement for the original eyes included with the Seachoice Fender Lock (sold separately). A fender line is tied into the eye, which is then inserted in, or removed from the permanently mounted Fender Lock. These Stainless Steel eyes have an interior diameter of 3/8 inch. They are sold in packs of 2 eyes. Seachoice is committed to delivering quality marine accessories and OEM replacement parts to satisfy fishing, boating and watersports enthusiasts worldwide. Seachoice is run for and by boaters, offering a wide-ranging product line while remaining affordable.