Parents and children love this convenient, innovatively designed toilet seat created for enhancing the potty training experience of your child. A magnetic closure gently secures the built-in potty seat into its compartment in the seat lid until it is flipped down for use. The hinges are slow close for a gentle quiet close and are sturdy chromed metal. The lid and the ring are both white. This particular 6TSTE9999SL 000 fits elongated bowls which measure 18.5 inches from hinge holes to end of the inside of bowl. Installation hardware included. See diagrams above for both size and installation. Three-year warranty.