【Pet Screen - U-shaped Curtain】With this, you'll never have to worry about curious pets running out of the house or into forbidden areas again. Additionally, it effectively prevents unwanted guests from approaching your beloved pets without obstructing airflow or visibility. Choose this screen to prevent your pet from running out of the house or causing trouble. Note: Make sure to attach it to a clean wall. 【Suitable for Multiple Door Sizes】Important: Measure your door before ordering to ensure our magnetic curtain fits properly. See all available sizes and choose the one that best fits your door. (Door size only, frame not included.) 【Effective Cat Protection】We have designed double zippers on both the inside and outside of the cat screen for easy opening. Furthermore, the adhesive and Velcro are very secure, ensuring the screen is not damaged by cats. It effectively prevents cats from running out of the room while maintaining airflow. It also effectively blocks biting insects. 【Easy Installation and Removal】No tools required. Simply attach the self-adhesive backing of the Velcro to the door frame, then secure the cat screen in place. Before installation, clean the door frame surface and compare the cat door's size with the door frame's size to ensure sufficient space. 【Easy Installation and Cleaning】This cat door uses strong adhesive strips and can be easily installed in just minutes. If you want to replace it with another cat door, simply remove the original door. We also include two tools to make installation even easier. Cleaning this product is also very simple; it is dustproof, waterproof, and scratch-resistant. 【Two Reinforced Stickers】The new stickers have stronger adhesion, effectively preventing cats from entering from the inside. The superior design ensures a stronger seal and a longer lifespan. Made with vinyl-coated steel wire and nanotechnology, this pet door is a perfect choice compared to other pet doors. We also include two tools. Note: These stickers are not suitable for carpets or dirty concrete floors.