These boxes of 500 white #8 5/8 double window security envelopes (3 5/8 in x 8 5/8 in) protect your customers' sensitive data; a reflex blue pattern obscures the details of what's inside

Redi-Seal self seal mailing envelopes require no moisture; the unique double flap design allows you to simply raise the lower flap and press to seal

Double window envelopes show sender and receiver addresses; top window: 3 5/8" x 8 5/8"; 5/8" from the left; 2 1/4" from the bottom; bottom window: 1" x 4", 5/8" from the left; 2 1/4" from the bottom

#8 5/8 Mailing envelopes measure 3 5/8 in (height) x 8 5/8 in (width) and are made of 24 lb white wove paper with professional side seams; #8 5/8 envelopes fit into #10 envelopes

Stock up on boxes of 500 machinable #8 5/8 envelopes for bulk mailings