Quality Park Kraft Redi-strip Expansion Envelopes - Expansion - 10 W x 15 L- 2 Gusset - 40 lb - Self-sealing - Kraft Description: Expansion envelopes offer security for bulky mailings with a 2 expansion gusset for extra-thick mailings. Great for computer reports catalogs and binders. Large end-opening allows easy document insertion. Convenient Redi-Strip closure requires no moisture to seal. Simply peel away the liner and seal. Envelopes are made of a durable 40 lb. Kraft. Features: Product Dimensions: 10 W x 15 L Weight: 40 lb Self-sealing. Kraft 25 per Pack Country of origin: US Brand Name: Quality Park Model No: 2088-QUA93338