9.9 cm x 10.1 cm (3.92 in x 4 in). 286 2-ply sheets per roll. Total 22.8 sq m (249 sq ft). 8 mega = 32 regular (Based on number of sheets in Charmin Regular Roll). Cleans better (Vs. leading bargain brand). Keep your hiney shiny with Charmin Ultra Strong - it's woven like a washcloth so its cleans better (Vs. leading bargain brand). 1 mega = 4 regular rolls (Based on number of sheets in Charmin Regular Roll). Charmin is safe for your sewer or septic system. www.charmin.com. www.pg.com. how2recycle.info. (hashtag)Charminclean. Facebook. Twitter. Join the conversation with Charmin and don't forget to enjoy the go! Questions? 1-800-777-1410. FSC: Mix - Paper from responsible sources. Rainforest Alliance certified. Made in the USA from domestic and imported materials.