- Size: Fine wire mesh with 20 openings per square inch and 1 mm hole size. This mesh size ensures optimal airflow through ventilation openings while providing a sturdy barrier to keep unwanted pests out of your home. - Material: Crafted from woven stainless steel wire, this mesh is resistant to acids and alkalis, boasting high strength, tensile strength, toughness, and wear resistance for a long-lasting solution. - Product Features: The smooth and durable surface of the stainless steel mesh features a precise mesh pattern. It is resistant to rust and corrosion, maintaining its form without deforming, rusting, or leaving stains on bricks or wood—making it ideal for use in ventilation bricks. - Wide Applications: This stainless steel mesh is versatile and can be used in ventilation openings for doors, windows, ventilation bricks, kitchens, and bathrooms. It is also effective in gardens and yards for keeping leaves out of drainage pipes to prevent blockages. Maintenance is simple, and installation is straightforward.