Our guards are made out of surgical-grade stainless steel micro-mesh, averting the need of continuous gutter cleaning. This micro mesh fits on all types of roofs and interlocks panels to keep seams from unravelling, all while taking up to 60 gallons of water per minute in a given rain storm. It also creates a defensive barricade that keeps out all sorts of miniscule debris, leaves, animal nests, pine needles, and grit.