Applicable Dog Breed:UniversalColor:Brown, whiteMaterial:ABSpet products:Pet Gate DoorFeatures: Cat and dog door, window plastic pet door; High quality unique adjustable 2-inch door lining; easy to install and suitable for all doors, panels and walls; Cat door has an easy-to-use, tamper-proof 4-way lock and super-tough polymer weatherproof seal ring; 4-ways locking liner; External sealing ring can prevent rain and water from entering; Seals can reduce attrition and allow cats to move in and out of silence.Material: ABSSize:S: connected frame size: 19.7X19X2cm / 7.8X7.5X0.8inch, door cover size: inner door 15X15cm / 5.9X5.9inchM: connected frame size: 19.7X19X5.3cm / 7.8X7.5X2.1inch, door cover size: inner door 15X15cm / 5.9X5.9inchL: connected frame size: 25X23.5X5.3cm / 9.8X9.3X2.1inch, door cover size: inner door 19X18.2cm / 7.5X7.2inch

http://olla.gr/pet-door-4-ways-lockable-security-flap-door-for-dog-cat-kitten-wall-mount-door-animal-small-pet-cat-dog-gate-door-size-s-coffee/