Customer reviews from Staples
Staples - Self Seal Security Tinted #9 Double Window Envelopes, 3 7/8" x 8 7/8", 500/Box - White
Average customer rating
4.4
(16 Reviews)
Rating breakdown 16 reviews
5 Stars
11
4 Stars
3
3 Stars
1
2 Stars
0
1 Star
1
92%of customers recommend this product.
(
12 out of
13)
Customer Reviews for Staples - Self Seal Security Tinted #9 Double Window Envelopes, 3 7/8" x 8 7/8", 500/Box - White
Customer Rating
4
Great self adhesive envelopes
on October 31, 2025
Posted by: Past
[This review was collected as part of a promotion.] I think these are great windows self adhesive envelopes. The look and function of the envelope is great. The only hang up I had were a few had overly sticky adhesive so when attempting to unstick to seal the envelope the flap ripped
I would recommend this to a friend!
Written by a customer while visiting Staples
Customer Rating
5
Great envelopes
on October 31, 2025
Posted by: AvaP
[This review was collected as part of a promotion.] These envelopes work perfectly for sending out invoices. The windows line up just right and the adhesive strip not only saves you from having to lick the seal but it saves time too! Would definitely recommend.
I would recommend this to a friend!
Written by a customer while visiting Staples
Customer Rating
5
Great Quality Envelopes Perfect Size
on October 31, 2025
Posted by: BrooklynDad
[This review was collected as part of a promotion.] I was really impressed with these #9 white envelopes! The quality is excellent — the paper feels sturdy and professional, not thin or flimsy like some cheaper options. The size (3.875 x 8.875) is perfect for standard letters, invoices, or business correspondence, and they fit perfectly into mailing envelopes or folders without extra bulk.
The quantity was great for the price — plenty to last a long time, which makes them a solid value. What I liked most was how clean and crisp they look; they seal well and give a very polished impression for any type of mailing. Their Instant Seal technology gives me peace of mind knowing it won't come open and convenience for mass mailing.
Overall, I’m very happy with these envelopes and will definitely be ordering them again!
I would recommend this to a friend!
Written by a customer while visiting Staples
Customer Rating
4
Easy to Use
on October 15, 2025
Posted by: K.T.
[This review was collected as part of a promotion.] The envelopes came in a large quantity which is nice to have for a length of time with out needing more. In quality they are a standard envelope with typical thickness that does the job. Overall I like that it has the windows for the return and send to which makes ease of use worth having them. I also appreciated that they are self stick although one did rip when trying to open the edges up. Definitely recommend these envelopes for the ease and self stick options.
Written by a customer while visiting Staples
Customer Rating
5
Excellent Envelopes for Business or Personal
on October 14, 2025
Posted by: E.H.
from Lenexa
[This review was collected as part of a promotion.] 5/5 stars for these envelopes. They are great for business or personal mailing with easy to use flap. No issues with sticking tabs whatsoever. Overall would purchase again.
Written by a customer while visiting Staples
Customer Rating
5
Great self sealing envelopes
on October 31, 2025
Posted by: Swimdozer
[This review was collected as part of a promotion.] We help our neighborhood pool send out membership information every year but have never sprung for the self sealing option. Using a few of these the past couple weeks had changed that, it is a game changer. The seal is strong and the envelopes themselves are well made.
I would recommend this to a friend!
Written by a customer while visiting Staples
Customer Rating
4
Lots of envelopes in the box but instant seal bad
on November 1, 2025
Posted by: Brahm337
[This review was collected as part of a promotion.] The staples double window envelopes with instant seal has 500 envelopes in a box! It’s a great deal! The size is perfect for letters or anything else you want to fit in it and the double window makes it great to send letters out easily without having to write out the address. The only thing I had an issue with was the instant seal. For many of the envelopes, it didn’t cleanly rip off and would leave a portion of the sticky seal ripped off and unable to stick down. I found that I had to pull from both ends and not just one end for it to come off more cleanly and effectively. Or I had to pull it slowly and it would pull off more cleanly. When the sticky seal was exposed, it was very firmly sealed which I loved.
Overall, a great deal for a large amount of envelopes!
I would recommend this to a friend!
Written by a customer while visiting Staples
Customer Rating
5
great envelopes
on October 31, 2025
Posted by: LeoB
[This review was collected as part of a promotion.] I was sent a box of 500 white security peel and stick envelopes )#9 3.875 X 8.875). They are a perfect addition to my office supplies. I frequently do mailings and love that I don’t have to worry about the security print being transparent. Additionally I’m thankful that the adhesive seal actually stays sealed. I have purchased bulk envelopes in the past where the adhesive does not stay sealed which is very worrisome.
These envelopes allow me to prepare my mailings worry-free and provide much peace of mind.
I would recommend this to a friend!
Written by a customer while visiting Staples