Made of rugged, corrosion resistant cast aluminum these deck flanges are just the thing to secure your above ground pool ladder to your deck. Made to fit all types of above ground, in-pool ladders. With an inner diameter of 1.5 inches, the universal design works with almost any model deck ladder with rails of 1.5 inches or less. A heavy duty bolt grips the ladder rails and holds the ladder securely in place. Because deck materials vary and may require specialized screws, deck mounting screws are not included. Quick and easy to install. Makes adding that new deck ladder a snap!