Quality Park No. 10 Single Window Security Tint Envelopes

Single Window - #10 - 4 1/8" Width x 9 1/2" Length - 24 lb - Adhesive - White - Wove - 500 / Box. Protects sensitive client information with reflex blue tint pattern that makes it impossible to see the details of the contents even when held up to light. Single window positioned 7/8" from the left edge and 1/2" from the bottom for a mailing address.