Columbian #8 5/8 Security Envelopes, 500/Box, Double Window, 3-5/8" x 8-5/8", Redi-Seal Self Seal, Invoices & QuickBooks Statements, White (COLO182)

Hubby uses these for his business. Great value.

Plain and simple. They work. I am happy with the sealability of the glue.

These envelopes were perfect for Quickbooks printed checks.

the Columbian #8 5/8 Security Envelopes have exceeded my expectations. They’re reliable, convenient, and perfectly suited for my business needs.

The Columbian #8 5/8 Security Envelope is a great addition to any office. You get a huge box of envelopes that are on the thinner side but offer good security as you cannot see through them. Easy to seal and good adhesion. A little too sheer for my liking and also worth nothing the 5/8 envelope is the smaller size. A full sheet of paper neatly folded will not fit well. Great value for the money and great addition. It should easily last me a year.

Good deal for that many envelopes.

These envelopes are exactly what I was needing. They work well for both invoicing as well as mailing checks. They are opaque enough to hide sensitive information, and the window is the standard spot so I can easily print from my accounting program (Quickbooks). They came well packed and the box works for storage of them as well.I would definitely purchase these again, they work well and are reasonably priced.

These are easy to seal envelopes. Just press to seal. No Tongue Needed. Adhension Seal. And easy for recipient to insert letter opener to cut open the envelope. These Columbian #8 envelopes are perfect value for your business if your invoice, billing, or other paper documents are like 8x10 inch in size. But 8.5x11 inch will fit although it will be a little tight (instead get Columbian #9 envelopes, which are also available here on Amazon, for 8.5x11" documents). Price very comparable to office stores and other stores. And when you have amazon prime, then shipping usually means you get delivery within a day or so when you need the envelopes. Thanks Amazon!