These micromesh gutter guards are super simple to install and should do an excellent job at keeping the leaves and maple seed "helicopters" from plugging up our downspout leading to our rain barrels. Being a new design, the installation videos don't address this style of guard, but they install pretty much the same as the other styles with the exception of the 90 degree corners, I have one inside corner and was able to cut the angles on the two mating pieces with a slight overlap with no issues.
