Quality Park Products Products Security Window Envelopes, 24Lb, 4 1/8x9 1/2, 500/BX, WE Sold as 1 BX Security Window Envelopes require no moisture to seal. Raise the lower flap and press. The unique double flap design keeps gum from sticking until


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When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.