561 sq ft (51.6 sq m). 4.27 in x 3.72 in (10.8 cm x 9.4 cm). 3 - 4 roll packs. 426 2-ply sheets per roll. 12 super mega = 72 regular (based on number of sheets in Charmin Regular Roll). 6 rolls (vs. Charmin Regular Roll) in 1. Clog safe. Septic safe. Looooonger-lasting roll. 1 super mega roll = 6 regular rolls (based on number of sheets in Charmin Regular Roll).