SIMPLE SMART LOCK: cat flap, magnetic cat flap with 4-way twist lock for cats, kittens and kittens, improved version. The push button is rotatable in 4 directions and you can easily rotate it through 4 modes using the arrows and icons to control your cat's access options: in only, out only, free in and out, fully locked. Weatherproof Cat Flap: Provides weatherproof wiper blade tracks with snap fasteners to securely attach brush strips. Even if the brush bar comes loose, it can easily be returned to its track. This helps the brush strips reduce noise, deter raindrops, wind or pests such as mosquitoes. Easy to install: The sales box comes with instructions. Step-by-step installation and installation demo videos in the instruction manual for your reference, pay attention to the precautions and prepare the necessary tools for easy installation according to your needs. The depth of the tunnel can be reduced depending on your installation needs. Internal dimensions: Suitable for installation on interior and exterior doors, walls, windows, cabinets, glass, etc. Product Specifications: Product dimensions (L x W x H): M:19*5.5*22 cm, L:23.5*5.5 *27CM, XL:25*5.5*29.5CM Weight: 422 grams Closing button: Magnetic Size‎ ：M Color: Black Convenient lock The button is 4-way Convenient lock The button is 4-way The push button has 4-way rotation. You can easily rotate it in 4 modes using the arrow and icons to control your cat's access options: in only, out only, free in and out, fully locked.