Features: The solar support assembly is made of anodized aluminum alloy AL6005-T5 material, which has the characteristics of high strength, corrosion resistances, UV resistances, high frequency insulation, etc. Use, durable. The solar panel bracket is suitable for supporting grid-connected and off-grid solar panel, and has huge advantages in the component installation of solar panel on RV roofs, boats, yacht decks, houses, etc., 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 panel. 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 panel (please see the picture for the size introduction). The solar panel bracket is equipped with 4 sets of photovoltaic aluminum alloy pressing block sets, each set contains (1 bracket; 1 pressing block, 1 screw, 1 reinforcing gaskets), which can be more strong It can be installed on the surfaces of the photovoltaic cell without removing the screws. Specifications: Color:Silver Material: Aluminum 30 Size: Approx. 40x30mm/1.57x1.18inch 35 Size: Approx. 40x35mm/1.57x1.38inch 40 Size: Approx. 40x40mm/1.57x1.57inch 45 Size: Approx. 40x45mm/1.57x1.77inch Quantity:4pcs Package Includes: 4x Solar Panel Mounting Bracket Clamp note: Please allow 1-2cm errors due to manual measurement,Please 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.