Thomas helps keep potty training on track with fun train sounds and a tune to reward every success—and it “grows” with your child’s training, too! First it’s a potty seat with a built-in sensor that knows when to reward success with fun train sounds and music. Then, when your child’s ready to transition to the toilet, the potty ring removes for use on most toilet seats. Built-in potty ring handles on a seat that’s just their size help toddlers feel secure on a big toilet, making the transition easier for everyone. And the base converts to a sturdy step stool that helps children climb aboard the toilet, and reach the sink to wash hands!