Open windows mean fresh air, but they also mean an open invitation for mosquitoes, flies, gnats, moths and wasps. This magnetic mosquito screen keeps them all outside while your window stays open, so you get the airflow without the bugs. A barrier that actually works The fine mesh blocks mosquitoes and flies before they reach you, along with gnats, moths, wasps and other flying insects that would otherwise slip in through an open window. It works around the clock: crack the window in the evening when mosquitoes are most active, or leave it open all day without flies gathering on the counter. Air and light pass through freely. Only the bugs stay out. No drilling, no damage Installation relies on an adhesive magnetic strip that sticks directly to the window frame. There's no drilling, no screws and no marks left on the frame. The mosquito net itself is magnetic too. It clings to the strip with strong magnets, so the whole screen snaps into place in one go. On when you need it, off when you don't Because the net holds on with magnets rather than fixings, it comes off just as easily as it goes on. Take it down to close the shutters, clean the screen, or put it away for the season, then snap it back into place whenever you need it again. Fits wood, metal and PVC frames The adhesive strip bonds to wood, metal and polyester (PVC) window frames alike, so the same screen works whether your windows are painted timber, aluminum or uPVC. Keep the fresh air, lose the bugs. That's the trade this screen is built for.