Boat owners, listen up! These stainless steel clam shell vent covers are exactly what you need to protect your cables and wires from the elements. Each pack comes with two durable vent covers plus four mounting screws - everything you need for installation. The silver stainless steel construction means they can handle sun, saltwater, and weather without rusting or deteriorating. Measuring about 45x39mm (that's 1.77 x 1.54 inches for us imperial folks), they're the perfect size for covering those openings where cables, hoses, and wires pass through your boat's surfaces. The clam shell design isn't just for looks - it actually helps deflect water while giving your cables plenty of room to pass through safely. Installation is straightforward with the included screws, and once they're on, you can trust them to keep things sealed and splash-proof. Whether you're protecting transducer wiring, electrical cables, or any other marine connections, these vent covers provide professional-grade protection that'll last season after season. No more worrying about water damage to your important boat systems!