4-way locking system: In, out, in and out, fully locked, easy control over your cat. Keeps stray pets out. Easy installation, suitable for wood, PVC, UPVC, walls and glass doors. Waterproof transparent flap with silent closing. Durable plastic frame with four-way manual locking. Excellent quality: Please note that this item is suitable for cats and dogs under 7 kg. Overall size: Width: 20.3 cm, Height: 22.5 cm, Depth: 3 cm. See image for size reference. Product description: The 4-way manual locking allows you to easily control your cat's access by setting the door to in-out, in-out, in and out, and fully locked, while keeping other intruders away. Excellent quality: Made of durable ABS plastic, water-resistant, easy to clean and install. With the cat flap, your cat can have some freedom to come and go and everything is under your control. About our services If you have any questions, please leave a message, we will reply to you within 24 hours and provide you with the best service. If you are satisfied with our products, please leave us your comments and reviews, we will thank you for your support.