Metal Gutter Filters: Gutter guards effectively prevent leaves, moss and dirt from entering your gutters, so you don't have to waste time and money on having your pipes cleaned by professionals. PREMIUM MATERIAL: The aluminum filter is made of solid aluminum alloy, not easy to rust or wear, not only reusable but also has a long service life, making it the best investment. EASY TO INSTALL: Downspout guards can be easily installed by adjusting the adjustable downspout guard to the right size. VERSATILITY: Suitable for all kinds of bad weather, whether it's snowing or windy, the rain guard can be placed outdoors. PACKAGE INCLUDES: 4 x Expandable Rain Drain Guards - for Leaves and foam.