Spark Ink's #10 Security Envelopes are constructed with tamper evident slits on the seal and a full-block tint pattern to protect your sensitive mail. The envelopes are crafted from heavyweight plain, white 24lb paper with thicker adhesive glue that seals tightly and extra security measures that make this product exceptional for business, office and personal use alike. Envelopes are printer compatible for check and document printing.
We create premium mailing envelopes manufactured in North America. As stewards of the environment, we ensure our products are only manufactured from well managed forests including our packaging. 
 Great business envelopes for mailing checks, letter, or legal sized papers.
 

Envelope Dimensions:Â 4 1/8" x 9 1/2" (Standard #10 envelop size)Â
Count: Bulk pack of 500 #10 envelopes


Color: White, 24lb paper stock

Inside:Â Dark Navy, Maximum Security Tint Pattern
Outside:Â No window envelopes with tamper evident slits that rip when envelope is opened
Spark Ink, is a small, family owned business.
- Heavyweight Security Envelopes No. 10 (non-window): We specifically designed these #10 envelopes with a dark navy, heavy coverage security tint to provide guaranteed privacy for your legal or business mail. Crafted with thick, 24lb paper that ensures upmost privacy.
- Never Get Fooled Again: Unlike, regular plain white envelopes, these no 10 envelopes tear when opened! Exclusive tamper evident slits provide increased security to prevent careful opening and resealing.
- Perfect for Check Printing or Sensitive Documents: Windowless blank design allows for easy address printing or labels for mass mailing or to simply keep a bulk supply on hand for your home office. These white no-lick self-seal envelopes are used by businesses to mail documents with sensitive materials.
- Environmentally Friendly: Rest easy when you send a letter. Our legal size envelopes are manufactured from well managed forests and are fully recyclable.
- Eco-friendly created with wind power in the USA
- Heavyweight Security Envelopes No. 10 (non-window): We specifically designed these #10 envelopes with a dark navy, heavy coverage security tint to provide guaranteed privacy for your legal or business mail. Crafted with thick, 24lb paper that ensures upmost privacy.
- Never Get Fooled Again: Unlike, regular plain white envelopes, these no 10 envelopes tear when opened! Exclusive tamper evident slits provide increased security to prevent careful opening and resealing.
- Perfect for Check Printing or Sensitive Documents: Windowless blank design allows for easy address printing or labels for mass mailing or to simply keep a bulk supply on hand for your home office. These white no-lick self-seal envelopes are used by businesses to mail documents with sensitive materials.
- Environmentally Friendly: Rest easy when you send a letter. Our legal size envelopes are manufactured from well managed forests and are fully recyclable.
- Eco-friendly created with wind power in the USA
