Blue Summit Supplies 500 No. 9 Flip and Seal Double Window Security Envelopes
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20,207 reviews
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Business Mailing Envelopes
Experiential insights by users
About Blue Summit Supplies 500 No. 9 Flip and Seal Double Window Security Envelopes
Overall Feedback:
75% positive
70% liked the perfect size and fit, while 30% found it too snug
The envelopes fit perfectly and the windows lined up as they should.
The bottoms of the envelopes were stuck together, making it difficult to free them or refold paper to fit, causing extra time and effort.
These envelopes are not suitable for sending multiple invoices as they barely fit one invoice.
Many clients are complaining about their envelopes being opened and the mail person told me that it is causing a problem at the sorting center.
72% praised the high-quality paper, but 28% found it too thin
Over the past couple of years, the quality of our envelopes has been declining.
The envelopes we use are not durable enough to survive the mail process at the post office.
I am disappointed with the envelopes as they are not suitable for multiple invoices and the perforation at the top is poor quality. I even split an envelope while sealing it.
71% loved the crisp printing quality, while 29% experienced smudging
I suspect that the quality of the envelopes improved over time or I did not stuff them as full as other reviewers, as I have not had any problems.
Many clients are calling in complaining about their envelopes being opened. The mail person told us that it is causing a problem at the sorting center.
I am disappointed with the envelopes. I can usually make anything work, but these envelopes are awful.
70% appreciated the secure seal, though 30% experienced leaks
I suspect the quality improved or I didn't stuff my envelopes as full as others, as I didn't face any problems.
The envelopes were stuck together at the bottom, making it difficult to free them or refold the paper. This indicates a decline in their quality.
I am dissatisfied with the seal quality of the envelopes, specifically the perforation at the top which caused the envelope to split while sealing.
I received many complaints from customers about envelopes arriving open at the top, indicating poor seal quality.
66% liked the added security features, although 34% found them inadequate
Almost all of our envelopes are being delivered already opened and our customers are complaining about it.
70% praised the envelope's tear resistance, but 30% experienced tears
The envelopes are not tear-resistant and are getting opened during the mail process at the post office, resulting in complaints from customers.
The perforation at the top of the envelope is terrible. I just split an envelope while sealing it.
