Choosing mailing envelopes comes down to two practical questions: what format suits the documents you send, and how many do you expect to use? Here, the Mead 6¾ Security Envelopes box focuses on a larger quantity for folded letter-size documents, while the #10 Business Envelopes pack uses the familiar business-correspondence format at a lower listed price. Both are white, rectangular, self-seal envelopes with interior privacy features.
Quick verdict
Pick 6¾ Security Envelopes 500 Count White Self Seal 3⅝"x6½" 20lb Mailing Office when your routine calls for a substantial envelope supply and folded letter-size documents. Its 500-envelope box is built around the smaller #6-3/4 format.
Pick Envelopes Letter Size, 120 Count Business Envelopes #10, Self-Seal Security \| #1 when you want #10 business envelopes in a 120-count pack. At USD 24.23, it has the lower listed price; the two listed prices are separated by $8.29.
At-a-glance comparison
| Detail | Mead 6¾ Security Envelopes | #10 Business Envelopes |
|---|---|---|
| Listed price | USD 32.52 | USD 24.23 |
| Envelope format | #6-3/4; 3-5/8" x 6-1/2" | #10 business correspondence |
| Quantity | 500 envelopes | 120 envelopes |
| Closure | Self-seal | Self-seal |
| Interior privacy feature | Security lining | Security pattern inside; privacy protection |
| Stated use | Folded letter-size documents; home or office | Business correspondence |
Where each envelope pack fits best
The Mead 6¾ Security Envelopes are the more natural match for planned, recurring mail where a box of 500 makes sense. The description specifically positions the 20 lb. white paper envelopes for everyday mail at home or in an office. Their security lining is intended to help keep document contents private, while the self-seal closure keeps the packing process straightforward.
The #10 Business Envelopes better fit users organizing a smaller batch of business correspondence. The #10 format is stated directly, as are the self-seal closure and interior security pattern. This is also the lower-priced choice of the two, making it the clearer fit when the 120-envelope quantity aligns with the amount of mail you intend to prepare.
Product notes
6¾ Security Envelopes 500 Count White Self Seal 3⅝"x6½" 20lb Mailing Office
Choose this Mead box when your mailing plan calls for many smaller envelopes rather than a limited correspondence pack. The 500-count quantity gives it a clear purpose for office routines, home administration, and repeat mailings, and its stated use for folded letter-size documents helps define what it is designed to hold. The white paper construction, self-seal closure, and security lining suit everyday document mailing. The key limitation is format: these are #6-3/4 envelopes measuring 3-5/8 by 6-1/2 inches, not the listed #10 business-correspondence style. It is therefore best when folded documents are part of the plan, rather than when a #10 envelope is the specific format you need.
Envelopes Letter Size, 120 Count Business Envelopes #10, Self-Seal Security | #1
This pack makes the strongest case for business correspondence in a #10 envelope format. Its 120-count quantity is suited to a contained mailing project, and the USD 24.23 listed price is lower than the Mead box's listed price. The white rectangular envelopes have a self-seal closure, plus a security pattern inside and stated privacy protection. That combination keeps the focus on straightforward, no-window business mail. Its trade-off is quantity: with 120 envelopes, it supplies fewer pieces than the Mead 500-count box. Choose it when #10 business correspondence is the priority and the smaller pack better matches the scale of your mailing.
Final choice by use case
For home or office mail involving folded letter-size documents and a larger planned supply, select the Mead 6¾ Security Envelopes 500 Count. For a smaller #10 business-correspondence run with the lower listed price, select the 120 Count Business Envelopes #10. The deciding factor is less about closure or privacy treatment-both include those elements-and more about envelope format and pack quantity.
