KOHLER K-4731-GC-0 Stronghold Elongated Toilet Seat with Quiet-Close Check Hinge, White Made of Solid Polypropylene - resistant to staining, fading, chipping and peeling Ergonomic contour adds additional comfort to the seat An integrated handle allows the user to easily raise and lower the ring The Quiet-Close check hinge will slowly close with the slightest touch along with the check hinge functionality