Weathervane roof mounting plate dimensions: 3-1/2 inch x 5 inch Suitable for standard size wind vane, accepts wind posts up to 3/4 inch diameter Sturdiness and Durability The weathervane mount is made of solid hardened steel. This metal holds many advantages. It has huge strength and durability. The mount features a durable paint coat . The coated can support it to resist corrosion and to be corroded or rusted uneasily. Moreover, its productive processes include accurate welding, assembly, and so on, which gives our product a long lifespan. It can work for a long time. Simple Installation The installation of the weathervane mount is easy. The users do not need to learn the specific knowledge of installation. With general life knowledge, people will it. The user should adjust the angle of the legs of the weathervane holder until the legs can fit the aim surface. After that, they could tighten the screws with the relevant tools. Completed the installation, it is suggested that the users should check it at best. Multiple Purposes This weathervane holder is designed to be mounted on the roof of wood, steel, or concrete. The legs of the item are adjustable. It can fit different roofs by being adjusted its legs. For example, it can be installed on the V-shape proof as well as flat proof. The weathervane holder has reliable performance of resistance to bad weather and so it is suitable for outdoor applications. Moreover, it also can support many kinds of lights. Colour: Black material: metal Package Contents: 1 x Wind Vane Bracket 8 x Large screws 4 x Small screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.