TOTO SS154 SoftClose Elongated Closed-Front Toilet Seat and Lid. Elongated toilet seat with lid – designed to complement a wide variety of elongated toilet designs. Made from heavy duty solid plastic, easy to clean and chemical resistant. Seat is ergonomically contoured to provide maximum comfort to the user. Secure mounting assembly while keeping installation fast and easy. Complete with integrally molded, permanent color-matched plastic hinges. Overall Length: 18-1/2 (measured from the back of the hinges to the front most part of the seat). Overall Width: 14 (measured from left most point to the right most point on the seat). Inside Length: 11-3/4 (measured from the back to the front of the inner opening of the seat). Inside Width: 7-7/8 (measured from the left edge to the right edge of the inner opening of the seat). Distance Required Between Installation Holes: 5-1/2. Made from molded polypropylene. OUR PROMISE TO YOU. At Build, we promise to provide the best selection we can, most competitive pricing, and unmatched customer service. Our store has quality home improvement products from trusted manufacturers like Moen, American Standard, Delta, Kraus, Kichler, Progress Lighting, Schlage, Kwikset, Baldwin, Broan, NuTone, Air King, and Rev-A-Shelf. With over 200,000 home improvement products for you to choose from, we have just what you need to get your project done. We promise to make it our priority to get you your items as fast as we can. View more great items! This listing is currently undergoing maintenance, we apologize for any inconvenience caused.