No more clogged downspouts! GutterFoam - DownSpoutis the easiest way to keep leaves and debris out of your downspout. If you want to protect just your downspouts and not your entire gutter, thenGutterFoam - DownSpoutis the best choice. It is easy to install and no tools are required! Just wedgeGutterFoam - DownSpoutinto your downspout and that is it. GutterFoam - DownSpout is made from the same durable polyether material as GutterFoam and is infused with a UV and germicide protectant to prevent bacteria growth in your downspout. GutterFoam - DownSpout measures 3" x 4" x 2.25". 6 per box.