Set of four universal solar panel corner brackets are made of environmentally friendly, UV-resistant ABS plastic. Ideal mounting kit for roof mounting - no drilling, strong lateral support for small and large solar panels, The brackets can be securely glued to the surface regardless of the holes drilled. Flexibility in panel mounting position and ability to clean under panels if required; Mounting brackets also act as wind deflectors and provide a cooling air gap between the solar panel and roof Can also be used on flat roofs of buildings, sheds, garages or other flat surfaces Can be used with any aluminum frame solar panel with a side length of 30 cm or more< /p>