Package contents: The package contains 12 packs of solar panel center terminals, sufficient quantity for daily use and replacement needs, providing added convenience. Lightweight and sturdy: These plate clamps are made of high-quality aluminum with a fine manufacturing finish, offering resistance to rust and corrosion. Compared to stainless steel solar brackets, corrosion-resistant aluminum alloy brackets are lighter yet strong, providing reliable support for solar panels without adding extra load to the roof. Practical tools: These aluminum solar panel center clamps are designed to secure modules to rails, ensuring a stable connection between panels. Ideal for use on uneven or irregular surfaces. The mounting Z brackets are strong and durable, minimizing the risk of bending. Easy installation: These solar panel terminals enable a secure connection between modules. Simple to mount, helping save time and effort during setup. Widely used: The Z bracket kit allows for easy installation of solar panels on RVs, boats, campers, cabins, or other locations where a simple and reliable mounting solution is needed.