Brillo® Basics Estracell® Heavy Duty Scrub Sponge. More Sanitary! 4.0 x 2.4 x 0.6 in. (101 x 60 x 15 mm). Helping America clean since 1908. Heavy duty scrub material is designed to clean the toughest surfaces. It will remove burned on foods and grease from cast iron pots and pans. Independent test results demonstrate that bacteria will not feed and survive on the sponge fibers of Estracell sponge material...Naturally! The unique cell structure rinses cleaner and dries out faster eliminating the perfect breeding condition for bacteria and fungal growth. These qualities make Estracell more sanitary! Brillo is a trademark of Armaly Brands. For Questions & Comments, Call Toll-Free: 1-888-4-ARMALY, 8 a.m. - 4 p.m. EST. www.armalybrands.com. ©2010.