6 ft. x 5 in. Armour Shield Gutter Guard (25-Pack)Spectra Pro Select, Armour Shield was engineered to let more water in while keeping the debris out. The Diamond Syphon Technology allows the system to filter rainwater more effectively than other gutter covers on the market. While the Armour Shield Wave Engineering strengthens the product and allows for the wind to uplift any standing debris. Designed Dura Ridge airflow system maximizes leaf removal Filters water through, keeps debris out, visually