9.9 cm x 10.1 cm (3.92 in x 4 in). 300 1-ply sheets per roll. Total 35.9 sq m. (392 sq ft). 12 giant rolls = 31 + regular rolls (based on number of sheets on Charmin regular roll). 3x stronger (when wet vs. leading bargain brand (USA) when wet vs. bird brand 1-ply (Canada). Clog safe. Septic safe. Charmin is safe for your sewer or septic system. Good Housekeeping: Since 1909. Quality tested. Limited warranty. ghseal.com for details. www.charmin.com. www.pg.com. Facebook. Twitter. Join the conversation with Charmin and don't forget to enjoy the go! Questions? 1-800-777-410. 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.