"#81 Brown Kraft Cover Weight Card Stock" [Green Seal certified. Acid- & lignin-free for great quality that does not deteriorate. Laser & inkjet guaranteed on Writing & Text weights. Great for business cards, hang tags, note cards and more! Durable 80 lb Cover Weight. Sheet Size: 8 1/2" x 11" Quantity: Sold in lots of 10 sheets.]~[source: kraftoutlet]'h4d'