Review on Pack of 4 Massca Downpipe Gutter Balloon Guards - Enhanced Filter Strainers for Optimal Performance by Nathan Guzman

They are large and just about fit in our guitars. In fact, with a small roof overhang, it takes some time to install them properly. And each of them has so many "legs" that it takes a little effort to squeeze them all together at once to fit the bottom nozzle. We're talking about 10-15 seconds instead of 3-5 seconds with aluminum wire filters. So it's not that long, but the first one or two will take a little effort before you get the hang of it. Not visible from the ground, so don't worry. It hasn't rained here in the Northwest so I can't comment on their effectiveness, but they look like they're well constructed to prevent most likely material in our gutter from passing through them. I wish they came in a 2 pack. Also. Had to buy 2 x 4 packs for 6 drain pipes. It seems like a waste of money to buy add-ons that just lie around.