Key component of the Star Plate Mooring System.This Star Plate allows you to construct your own Star Plate Mooring System, Model 17153552, but does not include either the 6" diameter galvanized ring or the 3/4" galvanized anchor shackle. Unlike rod systems, where the only reliable attachment point is at the bottom of the buoy, this hardware system brings your mooring chain up through your center tube-style mooring buoy to the top, where the high-strength ring forms a convenient attachment point for your mooring pendant.The Star Plate Mooring System is an accessory for Jim Buoy models 4403-T and 4404-T Mooring Buoys. Can only be used with 3" diameter tube-style mooring buoys, as the large 3/4" shackle must fit inside the tube.Key FeaturesLarge 5/8" x 6" diameter ring (sold separately) fits securely in the slotted opening of the star plateRing is held in a fixed upright position by constant tension from the chain weight, always ready for a quick and easy tieupRugged 1/4" thick x 6" diameter concave star plate is designed to fit the top of your buoy and prevent "pull through"Routine inspection is a must for all mooring systems and the Jim Buoy model #4000 provides easy and visible inspection of ALL points of wearAll parts are cast hot-dipped galvanized steel constructionChain and shackle sold separately for a custom fit to your mooringSpecificationsApplication: 3" or larger, center tube-style mooring buoysIncludes:Concave star plate