The Mansfield Biscuit Lid Only for 178 Model 178-LID-BISC is a Biscuit 18?x10?. The Mansfield Biscuit Lid Only for 178 Model 178-LID-BISC weighs about 8lb, and is made of a vitreous china. The Mansfield Biscuit Lid Only for 178Model 178-LID-BISC comes with a limited Mansfield lifetime warranty. Mansfield is an American company that?s been in business since 1929, and has been one of the top producers in design, and quality for the past 80 years. They are the largest domestic producer of sanitary ware, and strive to ensure you get the best products available.