352 2-ply sheets per roll. 4.27 x 4 inch. 375.7 sq ft. 9 mega rolls = 36 regular rolls (based on number of sheets)! Roll fit guarantee. Septic safe. 4 regular rolls in 1 (based on number of sheets). Change the roll less often. Septic safe. Charmin is safe for your sewer or septic system. Made in the USA from domestic and imported materials.