Bemis 2155CT 000 Sta-Tite Elongated Open Front Toilet Seat, White Fits all manufacturers' elongated bowls Commercial-grade, heavy duty plastic with molded-in color resists wear, chips and stains STA-TITE Commercial Fastening System reduces installation time and eliminates callbacks for loose seats Dura Guard antimicrobial with properties built in to protect the seat from the growth of micro-organisms Check hinge prevents the seat from going 11 degree beyond vertical