Quality Park Double Window Envelopes for Checks & Invoices, Size 10, 4-1/8" x 9-1/2", White, 500 Count

<p>Quality Park Double Window Envelopes are designed for delivering your invoices, statements and checks securely. They feature two poly windows for showing the return and mailing addresses. The inside blue tint provides privacy for sensitive content, even when the envelope is held up to the light. The double-flap design keeps the gum from sticking before use. Simply raise the lower flap and press to seal. You can mail invoices, statements and other important documents with confidence. With 500 envelopes, each pack is ideal for everyday usage and bulk mailings, and will provide a long lasting supply.</p><br>

• Features two poly windows for the return and mailing addresses
• Reflex blue pattern lining prevents content from being read from outside
• Double-flap design with gum for sealing
• 500 envelopes ideal for bulk mailings
• Size 10, 4-1/8" x 9-1/2"