Description: Size and Dimensions: The solar panel bracket for RVs and yachts measures 63mmx100mm, making it suitable for most solar panels.Material: Made from aluminum alloy, these solar brackets are sturdy and designed to withstand harsh weather conditions. They are also lightweight which makes them easy to handle during installation.Easy Installation: With the included wrench and various types of screws in the package, installing your solar panels becomes easily even if you're not a professional.Versatile Use: These Z brackets are suitable for mounting solar panels on RVs or yachts but can also be used in trailers, boats, van, walls, roof, cabins, sheds, garages.Lightweight but Sturdy: Aluminum alloy mounts are lighter but stronger, support solar panels better, and have no burden on the roof. Specification: Material: Aluminum Alloy Size Chart: 6.3cmx10cm/2.48inchx3.94inch Package Includes: 16 Solar Panel Mounting BracketS1 Wrench32 Long Screws16 Nuts16 Gaskets16 Retaining Rings16 Short Screws Note: Please allow slightly errors 1-2cm differences due to manual measurement.