- Breathable and comfortable: multi-directional visual ventilation design with front and side ventilation mesh windows that can be flexibly adjusted. An interactive window provides easy access, helping your pet stay dry and comfortable in humid or hot weather. - One thing with multiple purposes: the detachable wheels are not only a pet carrier with wheels but also a moving castle for your pet. It can be used as a simple pet nest, a comfortable mobile cat house, and it feels as home-like outside. Tailor-made for pets to meet varied needs, making travel with your pets more worry-free and labor-saving. - Flexible wheels: four wheels that are easy to disassemble and reassemble, delivering smooth-rolling mobility in any direction. The telescoping handle extends easily and smoothly with adjustable length to suit different heights. Double wheels provide extra stability and durability. - Multi-functional and easy to carry: fits your needs as a Backpack, Rolling Carrier, and Tote Carrier. Includes a telescoping handle, a shoulder strap, and a top handle for three convenient carry options for your paw-tner. - Use scenarios: ideal for travel (airport or car) with rolling mobility or hands-free backpack use; great for daily outings such as Vet visits, city trips, and hikes; doubles as a cozy nest or mobile cat house when staying away from home.