This 3-in-1 Potty System starts out as a standalone training potty. The flush handle delivers a rewarding sound when pushed (batteries required) . As your child is ready to move from the potty to the family toilet, the detachable ring can be used to help ease the transition. Long after your toddler has mastered potty training, they can continue to use the handy step stool that’s perfect for helping little hands reach the sink. This potty was used a couple of times at grandma's house [has been sanitized]. Serious buyers only should inquire about a price.