website for Ride-on-carry-on 
Normally, I'm not a fan of combination objects, but I do favor them where they fit the needs — such as in traveling. Parents need some way of carrying children, and the normal stroller is big, huge, and bulky, and even though airlines will let you wheel it to the door of the plane, it is hugely inconvenient and often delays the travel. So here is a clever, solution. ("Designed by a flight attendant mom," says the website. I don't doubt it at all.) Actually, the title of this note is misleading. As an astute reader pointed out, “what you describe as a suitcase with a built-in baby stroller is actually a foldable chair that you attach to your wheeled luggage so that your kid can ‘ride’ along.”