352 - 2-ply sheets per roll. 501 sq ft. 4.27 x 4 inches. 12 mega rolls = 48 regular rolls. 4 regular rolls in 1 (based on number of sheets). Roll fit guarantee. Septic safe. Change the roll less often. Charmin is safe for your sewer or septic system. The Charmin brand is taking steps to help make a difference for our environment. Over the past 3 years Charmin has reduced energy used in manufacturing by more than 15%. Charmin will only work with forestry companies who plant or ensure the re-growth of more trees than are used from their forests. Made in the USA from domestic and imported materials.