4 Way Locking Cat Door with Quiet Pet Flap Key benefits Complete control over your pet's access: 4 modes provide flexibility to fit your routine and household needs. Fully open, locked, inonly (entry allowed, exit blocked), and outonly (exit allowed, entry blocked) keep your pet safe and your schedule on track. Quiet operation for a peaceful home: the pet flap design includes brush strips to minimize noise as your pet passes through, reducing disruption for you and your household. Elegant, unobtrusive addition to glass doors: a transparent small pet door that blends with glass doors and windows, adding a refined look and convenient access without compromising decor. Suitable for cats and small dogs up to 13 pounds: the access hole measures 7.5 inches by 6.1 inches, accommodating most cat breeds and small dogs while providing comfortable passage. Product highlights Access Hole: 7.5 inches x 6.1 inches Weight capacity: suitable for cats and small dogs up to 13 pounds Compatibility: designed to fit glass doors and windows with a transparent, unobtrusive appearance Function: 4 Way Locking for flexible control, plus a quiet pet flap design to minimize noise Use scenarios Family home with variable schedules: Use the four locking modes to manage when your pet can enter or exit, helping regulate activity during busy days or nighttime routines. Nighttime privacy and security: Set to inonly or locked to prevent pets from wandering outside after dark, while you maintain full door security. Glass door installations with decor considerations: The transparent design blends with existing glass features, providing convenient access without compromising style. Multipet households and small dogs: The 7.5 x 6.1 inch opening is suitable for multiple cat breeds and small dogs up to 13 pounds, offering versatile use across pets.