Customer Reviews for Staples Self Seal Self Seal Security Tinted #10 Double Window Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST28730-CC)
14% off of Staples Self Seal Self Seal Security Tinted #10 Double Window Envelopes, 4 1/8" x 9 1/2", White, 500/Box (ST28730-CC)
Item # : 1775862
Model # : ST28730-CC
Mail all your business correspondence with this 500-count box of self-sealing Staples security-tinted double-window envelopes.
- Pressure Sensitive Adhesive
- #10 business envelopes are suitable for all your mailing needs
Price is $29.99, Regular price was $34.99, You save 14%
Unit of measure 500/Box Price per unit $0.06/Envelope
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126 reviews
Most helpful positive review
Posted Jul 12, 2024
they are perfect for the statements sent quarterly.
VS
Most helpful critical review
Posted Feb 27, 2024
Stuck Flaps
So many of the envelope flaps were stuck down. I had to pry them with a letter opener to reveal the sticky part to close the envelope.
Tina D.
Verified Buyer
Reviewed at:
Staples Advantage
Posted Mar 27, 2025
Flue misalignment
The envelopes seal is not aligned with the flap. There is at least 1/8" inch of adhesive below the flap
0up votes 0
0down votes 0
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Jana
Verified Buyer
Reviewed at:
Quill
Posted Mar 7, 2025
Adhesive issue
Found many envelopes where the adhesive line fell below the top flap, leaving the envelope sticky below the top flap, causing possible problems in the U.S. mail. (One piece was returned to us with no postage marks, the PO said it was probably stuck to another piece of mail.)
0up votes 0
0down votes 0
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Beth E.
Verified Buyer
Posted Jan 14, 2025
Adhesive issues
The adhesive isnt great on these. Our invoicers here in the office have had to tape them shut. Its unfortunate that the only other option for this size of envelope is double in price for a different brand.
0up votes 0
0down votes 0
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MICHAL B.
Verified Buyer
Reviewed at:
Staples Advantage
Posted Jan 1, 2025
Quality has gone down
Quality has gone down since last time same item was ordered.
The box is flimsy, and the envelopes are not smooth, and they are overall thin and flimsy.
They are hard to stuff because the side flaps get in the way.
The box is flimsy, and the envelopes are not smooth, and they are overall thin and flimsy.
They are hard to stuff because the side flaps get in the way.
1up votes 1
0down votes 0
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DARRON
Verified Buyer
Posted Nov 26, 2024
Envelope windows line up perfectly with checks printed using Rent Manager software.
0up votes 0
0down votes 0
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PAULINE G.
Verified Buyer
Reviewed at:
Staples Advantage
Posted Jul 12, 2024
they are perfect for the statements sent quarterly.
1up votes 1
0down votes 0
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Rachael K.
Verified Buyer
Reviewed at:
Staples Advantage
Posted Jun 17, 2024
Revision is terrible
These seem to have been redesigned and they are terrible. The old ones were so much better. These are a funny shape and challenging to use.
1up votes 1
0down votes 0
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CYNTHIA C.
Verified Buyer
Reviewed at:
Staples Advantage
Posted May 16, 2024
Window Envelopes
These are too big for checks as they slide around. You have been out of the normal size for months. These also have a peel label which is not convenient when mailing stacks of business checks.
1up votes 1
0down votes 0
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Staples Customer
Verified Buyer
Posted Feb 27, 2024
Stuck Flaps
So many of the envelope flaps were stuck down. I had to pry them with a letter opener to reveal the sticky part to close the envelope.
4up votes 4
0down votes 0
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ANNAMAY S.
Verified Buyer
Reviewed at:
Staples Advantage
Posted Sep 28, 2023
Best envelopes
These are the best envelopes I've found for mailing multiple pages and Newsletters.
0up votes 0
0down votes 0
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Staples Customer
Verified Buyer
Posted Jul 26, 2023
Our treasurer had trouble opening some of the envelopes. The flap was stuck to the bottom part of the envelope.
3up votes 3
0down votes 0
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ROXANNE M.
Verified Buyer
Reviewed at:
Staples Advantage
Posted Feb 8, 2023
Staples Reveal-N-Seal Security envelopes
These did not work for us and we returned them.
2up votes 2
0down votes 0
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MARSHA S.
Verified Buyer
Reviewed at:
Staples Advantage
Posted Feb 1, 2023
Reveal-n-seal self-sealing double window envelope
The work ok, my go to envelopes is out of stock.
0up votes 0
0down votes 0
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Staples Customer
Verified Buyer
Posted Jan 13, 2023
Excellent
Appreciate the easy seal flaps. Saves time.
0up votes 0
0down votes 0
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PHYLLIS P.
Verified Buyer
Reviewed at:
Staples Advantage
Posted Jan 4, 2023
Double window envelopes
These envelopes fit our needs for sending out monthly statements to our residents. They work very well with the design of our statements.
0up votes 0
0down votes 0
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Staples Customer
Verified Buyer
Posted Dec 19, 2022
Excellent
Delivered on time thank you
0up votes 0
0down votes 0
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PEGGY S.
Verified Buyer
Reviewed at:
Staples Advantage
Posted Sep 14, 2022
Pretty Good
These will work until the #9's are available.
0up votes 0
0down votes 0
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Staples Customer
Verified Buyer
Posted Sep 1, 2022
Good for small businesses.
Love these! I can send out my invoice quickly with these.
0up votes 0
0down votes 0
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SUZY
Verified Buyer
Reviewed at:
Quill
Posted Jun 22, 2022
5 stars
These envelopes are the greatest for our financial checks. Will order them again
0up votes 0
0down votes 0
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Staples Customer
Verified Buyer
Posted Jun 16, 2022
Work Well
These stay closed and stick much better than the ones I have been buying at a different store
0up votes 0
0down votes 0
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