1.Not quite sure about the size of your downspout holes? No need to worry, Those 6 packs wide-3.3 inches, tall- 6.1 inches. suitable for resisting most blockages. 2.EASY TO USE: No extra tools required, easy to adjustable, you can tighten the gutter guard as much as you need. You just need to easily push them into the right place. 3.NO MORE CLOGGING: Save yourself the hassle of constantly unclogging your gutter; protect your wallet from pricey repairs. With a pack of 6 rain gutter screens in every set, you'll be able to keep leaves, dirt, and debris out of your downspout pipes the simple and effective way. 4.DURABLE MATERIAL: We adopt non-corrosive, waterproof and weather-resistant aluminum. This gutter guard strainer is more heavy-duty. Durable enough to stay firmly in place and don't bother you to re-install it. Colour: silver Material: aluminum Size: 12x8.0cm Package Contents: 12 x Filter cap