1. IMPORTANT NOTE Our fly screens come with nets only and are not included. You need to prepare all the necessary installation tools yourself. We apologize for any inconvenience this may cause, and thank you for your understanding before placing an order. This transparency ensures you have all the information you need to make an informed product decision. 2. Efficient insect protection – window grille serves as an excellent barrier against annoying insects. Keeps out flies, bugs, bees, mosquitoes and other flying insects while still releasing fresh through the tiny holes. Natural design mosquito insect screen curtains means that no harmful chemicals are involved, and provide a y living environment for your family. 3. Easy installation: With a simple self installation design, you do not need professional tools or complex steps to set up the window shade. In just a few minutes, you can assemble and fix it. This straightforward installation process is convenient for anyone, even those with limited abilities, allowing you to quickly improve your insect screen.