330 2-ply sheets per roll. 9 mega rolls = 36 regular rolls. Septic safe. 4 rolls in 1 (vs Charmin Regular Roll). 3.92 in x 4 in. 4 regular rolls in 1 (based on number of sheets). Roll fit guarantee. Charmin is safe for your sewer or septic system. www.charmin.com. Made in the USA from domestic and imported materials.