double window security envelopes for Business checks and invoices, 3 5/8 X 8 5/8 - for convenience when mailing checks. This envelope is perfect when purchased with our QuickBooks checks. This envelopes has a blue tint interior for additional security.
designed to fit your printed che...
Double window Checks Envelopes Self Seal. No water or sponges required. Simply remove protective liner, fold flap and press for a quick secure seal.
Use for convenience when mailing QuickBooks checks and invoices. This envelope is perfect when purchased with our checks. This envelope has a blue tint interior for additional security.
designed to fit your printed checks!
Given the nature of checks, it only makes sense to buy the best check envelopes. Our selection of check envelopes have perfectly positioned windows to reveal the information you need for sorting and mailing while protecting the sensitive details. All our check envelopes have special security screens for added security. These envelopes are essential for anyone who needs to send checks by mail.