Description The Z-Bracket Mount System is designed to support the installation of single solar panel units, generally in off-grid installations. These units are for installation on RV roofs and non-inhabited dwellings such as sheds or garages. It is also suited as attachment to a user made structure such as a wooden frame. The system comes complete with all fasteners to secure the system to the installation surface. This system makes the installation of small solar systems easy, affordable and quick. Feature - Color: Silver.- Material: Metal.- Size: 5.5 x 3.8 x 2.2cm.- Note: Random style.- The Mounting Z-Brackets are composed of aluminum material. Therefore they are very light weight and convenient.- The brackets are aluminum with a nice finished (not sharp) and the aluminum will not rust.- In the surface of bracket have different holes to make installation more solid and safer.- It works great with plenty of space between panel and roof for cooling.Packing list: 4 x holders