9.9 cm x 10 cm (3.92 inches x 3.95 inches). 300 2-ply sheets per roll. Total 35.6 sq m (387 sq ft). 12 mega = 48 regular rolls. Dermatologist tested. Gently cleans. Clog safe. Septic safe. Looooong-lasting roll. 1 mega roll = 4 regular rolls (based on number of sheets in charmin regular roll). Charmin is safe for your sewer or septic system. Roll Fit Guarantee: If not satisfied with your Charmin mega roll fit, send original receipt and UPC within 60 days of purchase for a refund. Limited to one redemption per household or name; no organizations. Refund is only for the cost of one pack of mega roll. Allow 6-8 weeks for refund. Call 1-800-777-1410 for details. 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? 1-800-777-1410. www.charmin.com. FSC: Mix - Paper from responsible sources. www.fsc.org. Rainforest Alliance Certified. Made in USA from domestic and imported materials.