- Experience unparalleled convenience with our innovative switchless dog door, designed to provide your pet with seamless access in and out from both sides. The back panel includes a practical blocking feature with an insertable hole for easy temporary sealing when necessary. - Tailored specifically for large dogs, this versatile dog door can be effortlessly installed in a variety of door types, including wood, metal, glass, iron grid, plastic, steel, and even walls. - Installation is straightforward, with factory-distributed screws to accommodate different door thicknesses. If the included screws do not suit your setup, additional screws must be purchased separately. - The standard cutting hole for installation measures 57.5 cm in height and 41.5 cm in width, ensuring a perfect fit for your space. - Use Case Scenarios: 1. Allow your dog to enjoy the backyard while you relax indoors, giving them the freedom to play without constant supervision. 2. Create a convenient entry for your dog to access a dog room or garage, minimizing the need for constant door opening. 3. Install in a wall to provide direct access to an outdoor dog run, enhancing your pet's outdoor experience while ensuring they remain safe. Choose our dog door for its practicality, compatibility, and ease of use, providing your furry friend with the freedom they crave while maintaining your control over their movements.