KOHLER K-4713-0 French Curve Quiet-Close with Grip-Tight Bumpers Elongated Toilet Seat, White Quiet-Close(TM) lid closes slowly and quietly without slamming. Grip-Tight bumpers add stability and prevent shifting. Quick-Release(TM) hinges allow seat to be unlatched from toilet for easy removal and convenient cleaning; no tools required. Quick-Attach(R) hardware for fast and secure installation. Color-matched plastic hinges.