Helping prevent fatigue with an efficient and comfortable rowing stroke for a variety of paddling activities, Attwood clamp-on oar locks are easy to install and fasten securely with a single bolt. Corrosion resistant zinc plating ensures lasting durability. Sold in a pair. Attwood Corporation has been an award-winning leader in engineering, testing, and manufacturing 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.