Fisher-Price Thomas & Friends 3-in-1 Potty Training Toilet with Step StoolToddlers can learn how to go like a big kid with their trusted friend, the No. 1 Blue Engine, Thomas, using the Fisher Price Thomas & Friends 3 in 1 Potty. This versatile training toilet grows with your child, starting as a standalone potty chair that rewards every success with fun music and sounds. When your child is ready, the removable potty ring easily transitions to fit over a standard toilet. Once potty training is complete, the unit converts