Quick-release polymer wheels and easy-folding design improve portabilitySuspension system capable of three inches travel minimizes bouncing/vibrationsIndependent reclining SeatsHigh-quality materials improve strength while reducing weightSwiveling Front Wheel for unmatched maneuverabilityLockout mode with adjustable tracking for easy conversion to JoggingPadded shoulder harness to add to your child's safety and comfortIndependently adjustable canopy2006 Duallies were redesigned to fit through most doorways; total width 30.8"