Sturdy and durable material - The dog door frame is built from high-quality materials with a stable structure that resists deformation. The screen mesh is anti-scratch, anti-wear, and knife-cut resistant, and it effectively filters ultraviolet rays. It also offers good anti-aging properties for a long service life. Easy installation - The installation process is simple and easy to understand. Steps: remove the screen door, separate the dog door frame and place it on the screen door, align the pins to fix it, tap with a hammer to stabilize, tighten the screws, then use a knife to cut the screen and insert it into the inner door to complete installation. Considerate detail design - Bolt lock prevents pets from entering and exiting at will, making it easier for the owner to control the pet activity range. - The door features an automatic closing magnet design, so it closes automatically after pets pass through and keeps the screen door closed. Stable structural design - The frame is reinforced with screws to provide stability and resist loosening or detachment, unlike some other dog doors. - The inserted inner page design is easy to install and allows pets to pass through smoothly, and the inner page is sturdy and durable. Practical use scenarios - At home with screen doors leading to a patio or yard, allowing pets to go outdoors or come indoors without leaving the door open. - In apartments or homes with multiple doors, enabling controlled pet access while keeping the interior secure and tidy. - For households with children or multiple pets, using the bolt lock and auto-close magnet to manage activity zones and prevent free roaming, while ensuring the door closes automatically after passage.