Features ALUMINUM ALLOY These solar panel brackets are made of excellent aluminum alloy with high strength, UV resistance and high frequency insulation performance. Wide application: the Z-shaped bracket assembly can be used for RVs, trailers, yachts, ships, off-grid roofs or other places where solar panels need to be installed. FOR 50-150W PANEL: Each set of Z brackets is suitable for installing solar panels with a maximum power of 150W, saving cost of installing photovoltaic systems. Z SHAPE BRACKET These solar panel brackets adopt unique Z-shaped design, convenient and quick to install, and ensure the stability of the solar panel structure. Easy installation: thanks to the good workmanship, these mounting brackets have reasonable openings and are equipped with screws, easy to install and disassemble, simple and practical. Specification: Item Type:Solar Panel Bracket Material: aluminium alloy. Package list: 4 x brackets. 12 x fixed screws Package List 4 x Brackets 12 x Fixed Screws