The Double End Extension Post adds 8½” to the standard post. This post gives adjustment at both ends, utilizing both vertical and horizontal adjustment. Two different angles on the teeth give a finer angle adjustment on the rod holder. Made of the best marine grade materials for strength and reliability, our post resists twisting and bending. It is rated to 50 lbs of tip pressure to the end of the extension (on a straight downward pull). Sideways pulling greatly decreases the amount of pressure that can be applied in a safe manner, but this post is still very solid. Made in USA