The material of this solar bracket hook is stainless steel,it can be used on concrete flat roofs, balcony railings, gardens, garage roofs, etc.
YRK's solar balcony hooks and all accessories are made of stainless steel, which means they do not rust. The hooks are equipped with an anti-slip and scratch. Therefore, if properly installed, your railing will also be protected from scratches.
Concrete Foundation solar mounting system is typically applied on flat open field, such as flat roof or ground. The concrete base is easy to build regardless of various soil conditions.