"Versatile Sunforce universal surface solar panel mounting kit is adaptable for use with solar panels up to 1 1/2in. thick. Promotes airflow all the way around the solar panel to reduce panel temperature and increase panel life. Compatible With All panels up to 1 1/2 in. thick, Pieces qty. 8. 4 corner pieces and 4 side pieces hold the solar panel snug Mounts to any flat surface to help increase airflow around the panel Durable ABS plastic material with UV protection"