Designed to fit most elongated toilets, this Cachet seat combines subtle styling and innovative technology. Unique Grip-Tight bumpers hold the seat firmly in place and prevent shifting. This soft-close seat features innovative technology that prevents the seat from slamming and simplifies both cleaning and installation. Kohler® Toilet Seat, Cachet® Quiet-Close™, Elongated Bowl, Quick Release Hinge, Closed Front, 5-1/2 in Mounting Hole, 14-3/16 in Width, 1-1/8 in Height, 18-1/16 in Length, 1-1/8 in Thickness, Plastic, Dune