1. Dimensions: With airlineapproved design, 46 x 28 x 28 cm. Expandable size: 18 x 29.8 x 11 inches. for small pets up to 20 pounds, fits comfortably under the seat. 2. Petfriendly design: Our cat carrier features 3 openings, each with a nonslip zipper to ensure pet safety. Mesh windows on all sides enhance air circulation. Two expandable sides provide extra space for longer trips, ensuring your pet has a comfortable place. 3. Safety and comfort: The carrier uses selflocking SBS zippers—once closed, pets cannot open them from the inside. It includes a plush blanket for a safe and cozy environment. Reflective strips on both sides improve nighttime safety. 4. Easy to carry and clean: The pet carrier folds for compact storage and transport. It comes with a removable, adjustable shoulder strap and handles for versatile carrying options, suitable for cars and all travel types. The cozy, removable mat inside allows for easy cleaning.