【Material and Size】: These wire mesh sheets are made of 304 stainless steel in 20 meshes, 21 x 30 cm / 8.3 x 11.8 inches; The aperture is approximately 1 mm, the wire diameter is 0.4 mm. 【Advantages】: The surface of the woven wire mesh filter is smooth and with a winding structure, more durable, rustproof, heat-resistant, anti-corrosion, not easy to deform, bend and break, long life and easy to maintain. 【Customized Shape】 The wire mesh screen is easy to bend and cut into many shapes and sizes for daily use. Be sure. 【Wide Application】: The stainless steel ventilation wire mesh gauze can be used in door, window, kitchen and bathroom vents to prevent film from blocking the pipe, and can also be used as filters, sieve passages, etc. 【Package】: You will receive 4 pieces of wire mesh panels, practical and sufficient for use according to your needs.