The sturdy design of our 3/4" three-way corner fitting for slope down peak roof structures is key to creating structure that provides both shade and protection from the elements. Made from galvanized steel, each fitting is strong, secure and very stable. In addition, the eyebolts create a snug fit for each inserted pole. Your canopy structure will stay intact in even windy weather when you use these slope fittings. The fitting's inside diameter is 1" and includes welded connections.