Our standard hinges are designed to attach one side of the hinge to the downspout coming down from the gutter and then attaching the other side of the hinge to the downspout extension to be able to raise and lower your extension whenever you need. These hinges are manufactured from .040 Galvanized steel and then coated with a baked-on powder coated finish. Each hinge comes with Velcro tabs to secure the extension to the downspout when it has been raised. We offer options for both A-style and B-style elbows for both 2×3 and 3×4 elbows.