Four-mode adjustable locking device provides flexible control: entry only, exit only, free in and out, or fully locked. Easy installation: includes complete instructions for simple installation in windows, doors, cabinets, etc. If quality issues occur, you can contact us for a replacement or a refund. TE-DACHKLAPPE – This upgraded pet door is more capable than the old version. Silicone guide plates replace acrylic panels and help prevent tearing. Waterproof and weatherproof for reliable performance in varied conditions. Practical use scenarios: - Manage pet access at home by setting to entry-only or exit-only to control movement. - Install on windows, doors, or cabinets to create pet access in multiple openings. - Durable, weather-resistant design with silicone components helps resist cracking and withstand outdoor use.