A K-style foam gutter filter, GutterStuff is specifically designed to eliminate dangerous and dirty gutter cleaning! Manufactured with simplicity in mind, it can be easily installed in just minutes -without the use of special tools. Even installing around corners is a breeze; when you reach a corner, simply make a miter cut using scissors or a knife. For added convenience, it fits completely inside any 5” K-style gutter, the most common size and style. Once installed, GutterStuff seals out leaves while allowing large volumes of water to flow through quickly and efficiently, ultimately keeping debris from entering the gutter. Furthermore, the unit prevents mosquitoes from breeding in the gutter. Built tough, it’s made from a durable polyether outdoor foam that won’t crumble, dent, bend, or cave in.