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double window envelope

Double Window Envelopes: Get More from Your Envelope

Versatile and popular, double window envelopes are a staple for billing, statement and tax envelope mailings. A double window envelope, as implied by the name, has two windows—frequently one for the return address and one for the mailing address on the face of the envelope.
Trailing edge die-cut envelope with Tension t-ball logo

Unique (and USPS Approved!) Letter-Sized Mailpieces

A preview of upcoming letter-sized mail approvals for 2018 including non-paper envelopes, magnetic mail and trailing edge die-cut envelopes.

3 Levels of Mail Security

Safeguard your sensitive mail documents with secure envelopes.
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