Quality Park Self-Sealing Redi-Strip Expansion Envelopes - 10"W x 13"L - Kraft - 25 Pack

10" x 13" x 2" Expansion Envelopes offer security for bulky mailings. Gusseted sides expand up to 2" to accommodate extra thick mailings. Features a Redi-Strip closure for a secure seal. Made from extra heavyweight 40 lb. brown Kraft. 25 Pack.