AFTCO Ferrules are engineered for strength, precision, and long-lasting performance. Each ferrule is precision-machined and built with a notch-fit pin plug that ensures perfect alignment between rod sections for seamless performance. To protect your rod investment, these ferrules also feature an integrated O-ring seal that keeps out moisture and prevents corrosion, ensuring a secure, durable fit even in harsh saltwater environments. Ideal for custom rod builders and anglers who demand reliability from their equipment. Features & Benefits: Precision-machined construction – built for strength and long life Notch-fit pin plug – ensures perfect section alignment every time O-ring seal – prevents water intrusion and corrosion Durable design – dependable performance in freshwater or saltwater Perfect choice for custom rod building or repair