Features:-Equipped with high magnetic magnets, it can stay tightly closed and resist strong winds.-Automatic opening design allows you to free your hands, convenient in and out, and allows pets and children to pass through easily.-The fine mesh ensures proper ventilation inside the room after installation while blocking annoying flies, bees and mosquitoes.-The edges are finely sewn and are not easy to break even after long-term exposure to sunlight.-Installation and removal is very easy and quick, no tools required, no drilling required, just use the provided Velcro strap.-Perfect for fixing to balcony doors, entry doors, sliding doors, patio doors, cellar doors, bedroom doors, kitchen doors and more.Specification:Colour: white/blackMaterial: magnet+polyeste.