Made of high-quality 304 stainless steel, the surface is shot blasted, which is not easy to oxidize and slows down the corrosion rate of metals. Easy installation: It can be installed from any position of the aluminum alloy extrusion guide rail, flexible installation, bolt connection, no drilling and welding, fast and time-saving. It can meet the needs of different roof structures. Suitable for all kinds of universal frame solar panels on the market to be installed on various types of roofs. The hook height is adjustable and the installation location is adjustable. Suitable for all kinds of tiles, no need to drill holes on the surface of the tiles, good waterproof performance, to ensure the appearance of the roof. It is suitable for installing solar photovoltaic module brackets on various tile surfaces and color steel tile roofs. Material: 304 Stainless Steel Color: Silver Wind Load Rating: 60m/s Snow Load: 1.4kN/m2 Tensile Resistance: 400kg Size: app. 17x14x3.2cm (6.69x5.51x1.26in) Package includes: 1 x Solar PV Mount Hook (Excludes other accessories demo in pictures.)