The M-PETS Viaggio Airline Approved Pet carriers conform to IATA standards. They are deal for any type of travel (sea, road or air).Each carrier comes with practical handles on top, for a comfortable carrying from your car to destination. The carriers are equipped with a metal front gate and screws on the side for your pet’s ultimate protection. The three larger sizes (M, L,XL) also have wheels for ease of use. Your pet will travel safely and in style.