Baby gate comes with 4 adjustable levels cat door, it is a 7.5" x 11.5" pet gate that slides up and down. This allows for effective separation of pets of different sizes while ensuring a safe area for your baby Extendable Width: Extra wide baby gate with pet door can expand from 29" to 41" wide by connecting the included extension, for for stairs, doorways, kitchens and narrow openings. NOTE: Please measure your openings before purchasing to ensure proper fit Safe for Baby: The sturdy child gate is constructed with high-quality steel, capable of withstanding heavy impacts of up to 210 pounds. Additionally, the double-lock design of the dog gate prevents accidental opening by babies and pets Auto Close and Two Ways Open: Baby gate with a door features a two way opening and automatic closing function. When the gate's opening angle is less than 90°, it will close automatically, when the opening angle exceeds 90°, the door will stay open Two Mounting Options: Pressure-mounted for easy installation and removal, and drilled installations for enhanced stability and security. For stairs, we highly recommend using the hardware-mounted option to ensure maximum stability