The set of four universal solar panel corner brackets is made of UV-resistant, environmentally friendly and UV-resistant ABS plastic. Ideal mounting set for roof installation - no drilling, strong side support for small and large solar panels, the brackets can be glued to the surface securely, regardless of the holes drilled Flexibility in panel placement and the ability to clean under the panels when needed, the mounting brackets also serve as a wind deflector and maintain a cooling air gap between the solar panel and the roof Can also be used on flat roofs of buildings, sheds, garages or other flat surfaces Can be used with any solar panel with an aluminum frame with a side length of 30 cm or more