9-1/2" x 12-1/2" catalog envelopes feature a quick, easy, Redi-Seal closure ideal for bulk mailings. Redi-Seal closure includes a pressure-activated latex adhesive on two surfaces. Just press together for a strong, durable seal - no paper strips or moisture required. Redi-Seal envelopes are the perfect answer for concerns about surface germs in the workplace. Save time and cut the waste with every mailing. Envelopes are compatible with inkjet printers but are not recommended for laser printers. Bright-white envelopes make a clean, professional presentation. 28 lb. white wove paper withstands extensive handling. Center seam adds strength to handle heavy contents. Large envelopes store letter-size papers without folding or creasing. Classic, open-end manila envelopes are ideal for mailing manuscripts, homeschool packets, workbooks, sales literature, newsletters or contracts. Mail heavy enclosures with confidence.