The tm 65 s is a high gain solid offset satellite dish that will give you the best possible signal strength and quality from a dish of this size most dishes are made of steel but we use high quality lightweight zinc phosphate steel which reduces the weight impact on your building and also reflects a better signal to your lnb long term corrosion is prevented by an extremely thorough anti corrosive process and polyester coating a solid construction of all parts including the non slip mast bra