9.9 cm x 10.1 cm (3.92 in x 4 in). 451 1- ply sheets per roll. Total 54.1 m sq (589 sq ft). 12 Mega rolls = 48 regular rolls (Based on number of sheets on charmin regular roll). 3x Stronger (When wet vs. leading USA 1-ply bargain brand). Long lasting. Take strong to the next level! Charmin is safe for your sewer or septic system. Clog safe. Septic safe. Money back guarantee. www.pg.com. www.charmin.com. how2recycle.info. Facebook. Twitter. Join the conversation with Charmin and don't forget to enjoy the go! Questions? 1-800-777-1410; www.charmin.com. Try charmin ultra strong! FSC: Mix - Paper from responsible sources. www.fsc.org. Rainforest Alliance Certified. Made in the USA from domestic and imported materials.