15 Earthy Birch Fiber 80# Cover Paper Sheets - 12" X 18" (12X18 Inches) Large|Poster Size - 80 lb/pound Card Weight - Creamy off White Color with Natural Fibers - Smooth Finish 80# CARDSTOCK Cover is twice as thick as a sheet of 28# printer|writing paper (or a 70# text|offset paper). It is almost 3 times as thick as a copier/printer 20# bond paper. 216 gsm (grams per square meter). Calipers at .011 inches. Darker specks from small FIBERS of PULP are randomly distributed throughout each sheet, giving them the natural look of a fibrous handmade paper. PRINTABLE SURFACE which is fairly smooth with a natural tone which will make your colors more earthy than they would look on bright white paper. ARCHIVE FRIENDLY Acid-Free and Lignin Free Recycled paper with 30% post consumer waste, as good stewards of the environment and with document preserving characteristics for personal or business keepsakes. THOUSANDS of HAPPY CUSTOMERS have appreciated the quality paper we provide as well as the good service we offer. With over 30 years in the paper business, we have experience printing and writing on, folding, cutting, stapling, and assembling lots of high quality papers. We are always eager to answer questions so you get the right paper for the right job.