1000#10 Custom Printed Single Left Window Self Seal Security Envelopes Letter Size, Text and Logo Customization, Self Sealing Closure, Security Tinted, Size 4 18 X 9 12 Inches, 24 LB

These #10 security envelopes are of premium quality, offering ultra-secure protection for everyday business and legal mailing, safeguarding sensitive contents and information. Avoid inexpensive, thin large envelopes that permit contents to be easily seen. These #10 mailing envelopes feature an ultra-strong self-seal adhesive strip, forming a robust seal across the envelope's width that resists tearing, ideal for mailing larger, thicker documents. These white business self-seal #10 envelopes are excellent for bulk mailing. Each envelope includes a premium, extra-large, easy-to-read 4-1/2" X 1-1/8" poly window, positioned 7/8" from the left and 1/2" from the bottom, perfect for displaying addresses or business details and eliminating slow printing and manual addressing.

These plain white letter-size envelopes are crafted with a security wave pattern on the interior to shield contents, data, and numbers from being readily visible, unlike other low-cost envelopes. These peel and seal letter envelopes are suitable for everyday home use. Each box contains 1000 envelopes for an extended supply. Each security envelope measures 4 1/8" X 9 1/2", perfect for invoices, statements, and numerous other business applications