MADE IN THE USA Stock up with a great price. The boxes are factory sealed. One box was opened to snap a picture of the actual envelope. These are 24lb, 3 7/8” X 8 7/8” #9 business with security. Sold as a lot of 3000 envelopes. (6 boxes of 500 envelopes) Gum flap glue that you moisten Not self-sealing. These are $79.99 a box of 500 Office Depot