Parents and toddlers both love our innovative TinyHiney Potty toilet training seats. The sturdy wooden seat bolts securely to the toilet and can be used by both children and adults. When not in use, the child ring flips into the lid compartment, where it is held in place by a magnetic catch. The lid and the ring are both white. The hinges are state-of-the-art slow close chromed metal and match most bathroom fixtures. The hinges close the lid and ring quietly and gently. The seat is round, fitting standard toilet bowls that measure 16.5 inches from the front of the bowl to the center of the mounting holes at the back of the bowl. The seat comes complete with mounting bolts, nuts and washers to ensure easy installation and a tight fit.