Southworth Private Stock Business Paper, White, 24 Pounds, 500 Count (31-326-10) The texture of 25% cotton and a classic laid finish gives your documents distinction 24 lb., Watermarked and Date Coded for security Use for letterheads, correspondence, business & legal documents, and reports. Acid and lignin free archival quality 500 Sheets per Box Matching envelopes (EAP3232610), 8-1/2 x 11White