Features 1. It only takes a few minutes to install and disassemble, fast and easy, without tools or drilling, with dimensions of 90 x 210 cm, 100 x 210 cm, and 100 x 220 cm. 110 x 220 centimeters. 2. Use strong fasteners on the door frame to easily secure the insect proof device, and provide additional thumbnails that are sturdy enough to last for many years. Perfect for balcony and cellar doors, enjoying hands-free and pet friendly use 3. With the accompanying nylon buckle strap and thumbnails, the door frame can be quickly and easily installed in a few minutes without permanent damage caused by drilling or nailing. 4. The magnetic locking system can achieve easy hands-free entry and exit. Children and pets can also easily access through the internet. Equipped with Velcros straps, you can tie them tightly when you don't want to use them, which is very convenient. 5. Compared to other cost-effective sieves, improved stitching with more threads and fully reinforced edges have proven themselves. The sturdy net keeps insects out, allowing cats and dogs to enter fresh air. Polyester fly proof yarn is of the best quality and very durable. Specification Material: Polyester Color: Black, White Size: 30 x 25 x 4 cm Weight: 550 g Package Include: 1x Magnetic Fly Screen Door Pushpins Hooks Velcros