DURABLE: Made from heavyweight 28 lb. paper stock SECURE: Redi-Seal closure will ensure your contents stay safe with the licking factor out of mind LESS YUCK: We promise you won't miss licking envelopes or crumbly, drippy sponges; complete your mailings, no accessories required GREAT VALUE: Conveniently packed in 250 count to reduce the frequency of repurchasing FEATURES: 250 Brown Kraft, 9.5 x 12.5 Catalog Envelopes