Size: the gutter guard is suitable for most sizes of conventional downpipes,the whole height is 17 cm/6.7 inches, the size is adjustable. Material: made of high quality aluminum, not easy to rust, with bright silver appearance, which is very beautiful; the material and structure are strong enough to resist all kinds of weather and sunshine, and provide you with a long service life Quantity: each pack contains 4 metal gutter guards, sufficient quantity to satisfy your use Uses: the gutter guard can filter out fallen leaves, weeds, dust, debris or other contaminants to protect downpipes and gutter from being blocked; when the gutter guard is used for downpipes, the downpipes won't get clogged, and you don't have to spend a lot of time and energy unclogging the downpipes Usage: simple to install and maintain, no need to use tools; adjust the diameter of the aluminum filter strainer to a little less than the diameter of the downpipe and put it in; to avoid the tip injuring your hands, it is recommended to wear gloves when using