Introducing the Boat Fishing Rod Holders, sold as a pair. Made of matte off-white polyethylene, each holder measures about 10 3/4 inches in height, 3 3/4 inches in length, and 3 1/2 inches in width. They require a cutout diameter of approximately 2 1/4 inches and have an opening diameter of about 2 inches. Additionally, each holder features (3) 1/4-inch diameter countersunk mounting holes for simple installation.