STA-TITE® Commercial Fastening System™ Never Loosens™; Reduces Installation Time, Eliminating Callbacks for Loose Seats; Commercial-Grade, Heavy Duty Plastic with Molded-In Color Resists Wear, Chips and Stains; Self-Sustaining Check Hinges Hold Seat in any Open Position; 300 Series Stainless Steel Posts and Pintles Resist Corrosion; Fits Most Manufacturers Elongated Toilets; Made with Eco-Friendly Materials and Processes; Made in USA 14-1/2" x 18-9/16", Black, Plastic, Self-Sustaining Check Hinge, Open Front, Elongated, Heavy Duty, Commercial Toilet Seat without Cover