The Pet Gear World Traveler with Wheels is the only carrier you will need! It is a carrier that has wheels that can be pulled when your shoulder needs relief. It can also be used as a containment/sleeping area in a hotel room and it even meets most airline regulations for travel in the passenger cabin along with you (please check with airline regarding restrictions prior to travel). Seat belt loops help secure the carrier to your vehicles seat. The stylish design and the luxurious fabric make this carrier a fashion statement for both you and your pet. For SMALL pets only; read sizing dimensions of product carefully. Please consider your pets comfort when choosing this product. Measure your pet while your pet is standing up and lying down since the space needed may differ based on their position within the carrier.