Install and remove in minutes, quick and easy installation without tools or drilling. Measures 120x220 cm, fits doors with an inner diameter of up to 105-114 cm and doors with an outer diameter of 118-125 cm. Perfect for balcony doors and basement doors, provides hands-free and pet-friendly use (safe for cats). Includes quick strips and thumbtacks for easy installation in minutes; no drilling or nailing needed, preventing 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 mesh lets in fresh air, cats and dogs can still get in and out. Balcony doors open for fresh air. On hot summer days, these mosquito net curtains can let in cool air. Don't miss out on a good thing there. Install in minutes. 1: Clean the door frame Before installing the Velcro strips, thoroughly clean the door frame. 2: Attach the Velcro strip to the door frame. Take the exact size of the door and use scissors to cut the Velcro strips to the desired length. First attach the Velcro strip to the upper door frame, then attach it to the left and right door frames, then pull and press the Velcro strip along the door frame. 3: Mounting the fly screen. Start in the middle of the top edge of the door frame, gently press left and right to unfold the Velcro strips, use the included thumbtacks for extra fastening. 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 inner diameter of the door is a maximum of 114 cm wide and 217 cm high