DESC: The swivel front wheels on the Baby Jogger Double City Series can make maneuvering in tight environments a hundred times easier. It is an ideal option for families living in the city. The swivel front wheels on this Baby Jogger double jogging stroller also lock in place so the unit can go straight for walking in a more open environment. In addition to the great swivel mechanism, Baby Jogger offers one of the easiest folds in the industry. The patented Quick-Fold Technology is the only true one hand folding system in the market. It makes taking the Baby Jogger stroller in and out of the house or car a breeze. The Baby Jogger City Series features the Quick-Fold which certainly has a "wow factor" which not often found on other joggers. The Baby Jogger Double City Series is designed to easily fit through standard 30 inch doorways.