Customer reviews from Staples
Staples - Security Tinted #9 Double Window Envelopes, 3 7/8" x 8 7/8", 500/Box - White
Average customer rating
4.1 out of 5
4.1
(540 Reviews)
Open Ratings Snapshot
Rating breakdown 540 reviews
5 Stars
289
4 Stars
113
3 Stars
62
2 Stars
33
1 Star
43
100%of customers recommend this product. 
(
2 out of 2
)
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Customer Reviews for Staples - Security Tinted #9 Double Window Envelopes, 3 7/8" x 8 7/8", 500/Box - White
Customer Rating
5 out of 5
5
Staples # 9 Window Security envelope
on August 1, 2015
Posted by: Paula K.
Perfect fit for payroll checks. No numbers are visible when mailing.
Written by a customer while visiting Staples
Customer Rating
2 out of 5
2
on May 7, 2019
Posted by: C.V.
Verified Purchase:Yes
I was disappointed that many of the envelopes so far are slightly glued shut on the corner and the material seems of less quality (thinner) than from past purchases of the same envelopes
Written by a customer while visiting Staples
Customer Rating
5 out of 5
5
They do the job well
on December 26, 2025
Posted by: Mandell DMD
Verified Purchase:Yes
Used for office billing and they work well.
I would recommend this to a friend!
Written by a customer while visiting Staples
Customer Rating
5 out of 5
5
It’s in the mail
on January 31, 2026
Posted by: Tonia
Verified Purchase:Yes
These serve the need to get our invoices in the mail.
I would recommend this to a friend!
Written by a customer while visiting Staples
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