3-STAGE POTTY: The Summer Step by Step toddler toilet and stepstool is a complete 3-stage potty-training system. Designed to grow with your child, it makes transitioning to an adult toilet easier. STAGE 1: Use the Step by Step Potty as a stand-alone potty. It includes a soft contoured seat for added comfort. STAGE 2: When it’s time to transition to an adult toilet, simply snap off the toilet topper from the potty and place it securely onto a standard toilet. STAGE 3: For added convenience, the base of the Step by Step Potty transitions into a stepstool allowing your toddler to reach either the toilet or bathroom sink to promote good hand washing habits. ADDITIONAL FEATURES: The Step by Step Potty training toilet includes a flushable wipes holder and toilet tissue dispenser for added convenience.