4-way locking system: entry, exit, entry and exit, full locking, easy control of your cat. Keeps stray animals. Simple installation, suitable for wood, PVC, UPVC, glass walls and doors. Transparent waterproof flap with silent closure. Durable plastic frame with four-way manual locking. Excellent quality: Please note this item is suitable for cats and dogs under 7kg. Total size: Width: 20.3cm, Height: 22.5cm, Depth: 3cm. Please refer to the picture for size reference. Product The 4-way manual lock lets you easily control your cat's access by placing the door on entry-exit, entry-exit, entry and exit, 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 a little freedom to get in and out 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 encouragement.