Features: Made of anodized aluminum alloy material, which has the characteristics of high strength, corrosion resistances, UV-resistance, high frequency insulation, durable. Suitable for supporting grid-connected and off-grid solar plates, and has huge advantages in the component installation of solar plates on RV roofs, boats, yacht decks, house, and so on, even with various irregular surfaces. can be installed. The surfaces of the side pressure of the photovoltaic bracket is punched by a precise machine and polished without burrs. And the design of grooves stripes is more firmly bonded to the solar plate. The photovoltaic aluminum alloy bracket come with a complete kit, and the quantity is enough to meet your installation need. And we provide 4 different height sizes(30mm/35mm/40mm/45mm) for you to choose, so that you can find the size that fits your solar plate(please see the picture for the size introduction). The solar plate bracket is equipped with 10 sets of photovoltaic aluminum alloy pressing block sets, each set contains (1 bracket; 1 pressing block, 1 screw, 1 reinforcing gasket), which can be more solid. It can be installed on the surfaces of the photovoltaic cell without removing the screws. Specifications: Material: Aluminum Alloy 30 Size: Approx. 1.57x1.18inch(40x30mm) 35 Size: Approx. 1.57x1.38inch(40x35mm) 40 Size: Approx. 1.57x1.57inch(40x40mm) 45 Size: Approx. 1.57x1.77inch(40x45mm) Package Includes: 10x Solar Plate Mounting Bracket Clamps note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.