Can be installed and removed in minutes, quick and easy installation without tools or drilling, dimensions 120x220 cm, doors with an internal diameter of up to 105-114 cm and doors with an external diameter of 118-125 cm are ideal for balcony doors and basement doors for hands-free and pet-friendly use (safe for cats) Included quick-use strips and push pins allow for easy installation in minutes; drilling or nailing will not cause permanent damage to your door frame Magnetic Locking System for convenient, hands-free entry and exit. Even children and pets can easily prevent insects from entering through the net. Strong netting lets fresh air, cats and dogs in. and dogs can still come in and out Balcony doors open for fresh air. During hot summer days, these mosquito net curtains can let in cool air. Don't miss any good thing there. Install in minutes. 1: Clean the door frame Before installing the Velcro fasteners, clean the door frame thoroughly. 2: Attach the Velcro to the door frame. Take the exact size of the door and use scissors to cut the Velcro fasteners to the desired length. First stick the velcro to the upper door frame, then stick it to the left and right door frames, then pull and push the velcro along the door frame. 3: Assembly of the flying screen. Starting at the top middle of the door frame, gently press left and right to deploy the Velcro fasteners, using the included thumbtacks for additional securing. Scope of delivery: 1 * door and window screen 1 * tape (length: 600-650 cm) 1 * box of thumbtacks Notes 1. To attach the clips to an old wooden door, use the included nails. 2. Before installing the fasteners, check that the length of the fasteners matches the length of the door frame. 3. If the mosquito net is not completely closed, remove the mosquito net again, straighten it and reinstall it. 4. The inside diameter of the door is maximum 114cm wide and 217cm high