Boat owners, this one's for you! If the ladder mounting cups on your pontoon boat are cracked, worn out, or missing, this Baoblaze set is an easy and affordable solution. This pack includes THREE heavy-duty replacement cups made from strong, non-corrosive black nylon, so they'll stand up to sun and water without rusting. They are designed to fit standard removable or foldable pontoon ladder tubing with an outside diameter of up to 1 inch. To install, you simply drop the ladder's hoop ends into these cups. They require a 1-5/8 inch diameter hole to be cut or drilled into your pontoon deck for mounting (replacing your old ones). It's a simple upgrade that makes your boat ladder secure and functional again. Keep your boarding process safe and smooth with these durable replacement plugs!