Safe and thoughtful design - Transparent flap lets your cat see through the door, reducing hesitation. The 4-way locking cat flap gives freedom while keeping you in control with four modes: Just Out, Only In, Both In and Out, and Fully Locked. High quality and performance - Built from weather-resistant ABS plastic with a smooth, durable surface. A fixed groove with snap tabs secures weatherproof brush strips that fix the brush bar. If a brush strip loosens, it can be easily reinserted into the fixed groove. The brush strip reduces noise and largely blocks raindrops, wind, and pests such as mosquitoes. Size and applications - Frame size: 9.6 in x 8 in x 1.2 in (H x W x D). Inner height 5.9 in; inner door width 5.8 in. With the cat tunnel, it can be installed in windows, doors, cabinets, panels and thin walls. Mode options for control - Rotary switch offers four settings: Just Out, Only In, Both In and Out, Fully Locked, enabling easy monitoring and management of your pet’s access. Use scenarios - Install in an apartment door or thin wall to give indoor cats access while keeping other areas closed. - Place on a window or thin panel to allow your pet to move between rooms or sheltered outdoor spaces without disturbance. - Use in cabinets or closets to create a controlled entry to feeding or litter areas.