Protect the seat that protects your child. When you're packing up the car seat to take on an airplane or train, this smooth-rolling wheeled carrier will protect the seat's safety features (not to mention the upholstery!) from the perils of travel. High quality dual rubber wheels makes for super-easy transport, while the shoulder strap attached to a D-ring increases ease of pulling. The Wheelie also folds up easily to store in the plane's overhead compartment. Finally -- one less thing for your b