Quality Park 10 x 13 x 2 Expansion Envelopes with Self-Seal Closure - Expansion - 10" Width x 13" Length - 2" Gusset - 40 lb - Self-sealing - Kraft - 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. Redi-Strip closure requires no moisture. Simply peel off the strip and press for a secure seal. Extra-heavyweight, 40 lb. brown Kraft stock maintains durability during transit.