This Attwood Heavy-Duty Rod Holder Extension lets you adjust the position of a rod holder by up to 6 inches. This durable black Rod Holder Extension is intended for use with all Attwood mounts, including the Combo Mount and Standard Side Mounts. This product is only compatible with Attwood rod holders. It comes complete with all necessary hardware to mount to a round or square 7/8-inch to 1 1/4-inch-diameter rail. Attwood Corporation has been an award-winning leader in engineering, testing, and manufacturing of the highest quality marine products for over 100 years. We deliver safe and reliable lighting, fuel systems, water systems, seating & pedestals, swim ladders, custom upholstery, and general marine accessories that are easy to install and meet regulatory compliance.