SAY GOOD-BYE TO INSECTS: In cryptic mesh, honeycomb pattern, 1mm mesh. Prevent these unwanted guests from entering other pests such as flies, bees, mosquitoes, scorpions, insects, etc. VELCRO DESIGN: Easy to install without any other tools. Hand-sewn Velcro, multiply glueable, easy to use and good sealing performance. Easy assembly without drilling or damaging the door frame. CLOSED DESIGN: Adopt wide magnetic loop design, do not fall out, close without gap, close firmly automatically, do not produce excessive noise when closing. MATERIAL: The insect and fly screen door is woven from polyester fiber. The tear-resistant and stable material ensures a long service life. High quality hem, carefully sewn, not easy to damage, can be used for many years. SIZE: In order to better secure the screen, we have improved the width of the velcro. Please measure the size carefully by following the instructions before you place your order. Please measure the inside frame of the door and purchase a size of at least (width + 4) x (height + 4). We recommend that you purchase the larger size rather than the smaller size.