Corigy GM4 Pole Ground Mount Systemisdevelopedto realize adjustable angle on ground, which help panel win more solar energy during solar altitude change.Simple and Patented Cp-Rack structure make mountings easy to use; Highly pre-assembled components greatly save the labor cost for installers; Outstanding quality of stainless steel, Galvanized steel and Aluminum ensure the most durable brackets. All above properties help this system achieved a great market throughout the world.1.Adjustalbe angle2.Easy to Use3.Outstanding Durability4.Maximum installation flexibility5.High accuracy.