Usage scenario: Metal cover can be used to filter weeds, fallen leaves and debris; protect gutters and downspouts from blocking, saving time cleaning gutters and downspouts. 4 metal trench covers SIZE: 15 * 8 * 8 cm [the diameter can be adjusted, the length can also be cut as needed). How to use: Adjust the diameter of the filter screen according to your needs so that it is slightly smaller than the diameter of the downpipe, then insert it. No repeated maintenance is needed, so you don't have to worry about the water line clogging and you don't need to spend a lot of time and effort to unblock the water line. water. Product Description It can prevent leaves, branches, dirt, etc. from blocking your drainage pipes, extend the life of your drainage system and save time and energy. Material: aluminum alloy. Color: silver. Number: 4. Dimensions: 15 x 8 x 8 cm. Note: The edge of the product is slightly sharpened, which allows you to easily poke your hand. Be careful. It's BETTER to wear gloves when using it. Contents: 4 filter screens.