This Attwood Heavy-Duty Rail Mount gives you greater rod holder mounting flexibility and it delivers outstanding performance to help securely hold your fishing rod. This Rail Mount is designed for use with the Heavy-Duty Combo Mount (sold separately). This Rail Mount comes complete with all hardware required to mount to rails ranging from 3/4-In. to 1 ¼ In. wide. It provides 360-degree horizontal adjustment, and can be used as both a side mount or pedestal mount. Its locking keyway will not allow the rod holder to be removed until it is turned directly inward, so it helps protect against the loss of a rod and reel. This black Side Mount is made of durable, weatherproof plastic. 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.