Special design: This vent bag are designed to fit 4" diameter dryer vent pipes, vent elbows and dryer vent hoods. Unique design to fit various types of dryer vent covers, suitable for square or round wall side vent cover with or without rain cover.Built-in hook and loop strips: the vent bag is sewn with loop strips and hook strips with adhesive can help to fix it over the vent cover, so you will not need to prepare other items such as string, clamp, magnets, wire or screw. And can be take off to clean and reinstall in minutes.Strong adhesion: The dust filter bag offer a strong adhesive hook strip tape, which can frimly stick to the vent or the walls. They are made of high-quality polyester material that is wear-resistant and durable.Application: Eliminate the problem of birds' nests or dryer lint dust, preventing unwanted small animals from invading your vents.Package includes: 2 sets of vent cover bag including 2 pieces of bag sewn with loop strip and 2 pieces of hook strip with adhesive. Made of high-quality polyester material that is wear-resistant and durable. preventing unwanted small animals from invading your vents and capture the escaped lint. Track Page Views WithAuctiva's Counter