Quality Park Expansion Envelopes, Redi-Strip, Brown Kraft, 9 x 12 x 2, 25 per Pack, (93334) 2": Gusseted sides expand up to 2" to accommodate extra thick mailings REDI-STRIP: No moisture required with this Redi-Strip closure LESS YUCK: We promise you won't miss licking envelopes or crumbly, drippy sponges; complete your mailings, no accessories required DURABLE: Made from extra heavyweight 40 lb. Brown Kraft GREAT VALUE: Conveniently packed in 25 pack to reduce the frequency of repurchasing