1. Attach and remove in a few minutes, attach quickly and easily without tools and without drilling, suitable size 70 * 200 cm: inner frame width 64 cm; inner frame height 196 cm; outer frame width 70 cm; outer frame height 200 cm.Suitable size 90 * 210 cm: inner frame width 84 cm; inner frame height 206 cm; outer frame width 90 cm; outer frame height 210 cm.Suitable size 100 * 210 cm: inner frame width 94 cm; inner frame height 206 cm; outer frame width 100 cm; outer frame height 210 cm.^ 2. Attach the insect screen very easily to the door frame with the strong Velcro fasteners, extra thumbtacks are included, strong enough for years of use. Ideal for balcony doors and basement doors, enjoy free hands and pet-friendly use (cat-safe)^ 3. Quick and easy to install within minutes using the Velcro strips and thumbtacks provided; no permanent damage to your door frame from drilling or nailing^ 4. Magnetic locking system enables convenient hands-free entry and exit. Children and pets can also pass through the net without any problems.^ 5. The strong net keeps insects out and lets in fresh air, cats and dogs. The polyester fly screen is of the best quality and very resilient.