There are 16 different sizes: 100*220cm, 85*210cm, 95*200cm, 110*220cm, 95*205cm, 80*200cm, 70*200cm, 90*220cm, 90*210cm, 90*200cm, 85*205cm, 100*200cm, 100*210cm, 120*220cm, 95*210cm, 90*205cm. Please purchase according to the size of the inner and outer frame. Please refer to the size chart image for the door frame size. No drilling required, quick installation can be installed in minutes with the included strips and pins; Drilling or nailing will not cause permanent damage to your door frame. Magnetic locking system for easy, hands-free entry and exit. Children and pets can also pass through the mesh without problems. The sturdy mesh keeps insects out and lets fresh air, cats and dogs in, and the polyester fly screen yarn is of the best quality and very durable. There are two small velcro straps on the left and right side, so you can roll up the curtains at any time.