Quality Park Reveal-n-Seal Double Window Envelopes - Double Window - 8 7by8"W x 3 7by8" L- 24 lb - White

Moisture Resistant; Security Tint Double window envelopes display sender and receiver addresses for invoices and billing statements Reveal-N-Seal® security envelopes have a tamper evident perforated seal and close without moisture; press the 2 flaps together for a permanent seal Protect sensitive client information with a reflex blue pattern that obscures the details of the contents, even when envelopes are held up to light #9 Envelopes: 3-7/8" x 8-7/8"; top window: 1-3/16" x 3-1/2"; 3/8" from left; 2" from bottom; bottom window: 1" x 4"; 3/8" from left; 1/2" from bottom