Lightweight, economical, durable and perfect to use for my printed checks. I love the fact that it's self-sealing. Has a security liner so you can't see through the envelope. Fits checks perfectly

Love this product, professional and lives up to its name

We use them for everything and were a great price as well.

Great price

Excellent service.

These are great! Use to send out tax receipts to donors. Highly recommend

Great product at a great price

Thought to use this as an alternative to the envelopes we were using from another company. These worked better AND were a better deal!

good value and product

Good quality envelope at fair price

These envelopes are exactly as advertised and accepts metering ink or stamps very well. The peel off adhesive performs great but does require some pressure for it to adhere well..

Excellent quality and easy to peal off and does a good job of staying glued.

9 size security envelopes for mailing checks when using Quickbooks Accounting program

Good for business for sending out invoices. Love how I was able to get these with two windows for a great price can’t go wrong. Quality is not the best but then again I’m not really sending out anything crazy so it doesn’t bother me as long as the customer gets the invoice.

There's not a lot to say about envelopes, other than they work or they don't. Unless they're this new kind of envelope alchemy that eliminates those irritating peel-off strips for self-sealing closures! What sort of magic is this, that you unfold a flap to reveal a strip of gum that doesn't seem to want to stick to anything, until it comes into contact with its mate on the upper envelope flap, to which it adheres immediately? I had not seen such a thing before. Truly amazing! In practical terms, the 9 envelope is perfectly sized for 8-1/2 x 11 inch single pages, tri-folded. The security print does a good job of obscuring writing printed on the contents (I couldn't see or read anything when I held it up to a bright light). I've been wanting window envelopes for a while; addressing them by hand is inconvenient and I don't do enough to make running them through a printer worthwhile. And I really don't care for address labels... One caveat: the adhesive doesn't make an impervious seal, and the envelope can be carefully reopened and then re-sealed with no significant loss of performance -- which could actually be a benefit, in case you forget to put something in the envelope before you sealed it the first time, or put in the wrong paper, or forgot to sign something, or somesuch. I'm happy with them. Five stars.

The glue from the peel strip gets all over everything! Such a sticky mess and I haven’t found anything to clean it that won’t strip the color off my desk! Very dissatisfied!!!!

Obviously very cheaply made. The middle of the envelope in the back does not come up all the way to meet the sides. I have had other envelopes that do that, but on these envelopes this 'middle piece' is not glued all the way down on the sides, allowing the paper you are putting in to get STUCK underneath. After only 5 invoices, I thought I wouldn't be buying these again, but the 'self adhesive' feature really SEALED it! The tear-away strip has only a miniscule amount of extra paper to grasp as you peel it off, and the glue underneath is some weird, inferior adhesive that sometimes won't let go of the envelope and other times sticks to the strip, or your fingers, or the desk. It's like an office comedy, as you try to throw the strip into the trash can, but it won't let go of your fingers. It might be funny if I didn't have 40 envelopes to seal and get in the mail. I don't have time for envelope-glue practical jokes. This isn't Seinfeld. Won't be buying again.

Envelopes are sturdy; close tightly.

Less expensive but does it’s job.