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500 Number 10 Single Window Envelopes - Thick Gummed Seal - Designed for Secure Mailing of Quickbooks Checks, Invoices, Business Statements, Personal Letters - 4 1/8 x 9 1/2

Free shipping on orders over $29.99

$23.99

$ 10 .99 $10.99

In Stock

1.Size:Left Window | Box Of 500


About this item

  • Perfect for mailing Invoices, QuickBooks Invoices and checks, billing statements, checks, and other business mail.
  • No need for tape or glue sticks as our strong gummed seal creates a hassle free and safe seal for all your sensitive documents.
  • Provides complete business mail security: your professional business mail will be completely hidden with our dark security tint design
  • Create professional looking mail with the added security of a single window envelope. Your business mail recipient address will show through the single window and you can quickly print your return address or add return address labels
  • Tamper proof design with our hot melt glue adhesive manufacturing process that allows the glue to penetrate the envelope, thus causing the envelope to tear if you open after sealing



Product Description

Blue Summit Supplies
BSS-92588-011

Save Time and money Sending Business mail with our # 10 Single Window Security Envelopes

Quickly and easily send hundreds of business invoices, bill statements, and checks with our #10 envelope design and cost effective gummed seal.

  • Our gummed flap with thick adhesive make for quick and easy mass mailings.
  • Saves you money on bulk business mailing of business statements, invoices, or checks
  • Enough room for no 8 or no 9 return envelopes so you can get paid faster

Business mail will be completely secure during transit

It can be so difficult to find envelopes that create a strong lasting seal thus forcing you to waste time using glue sticks or tape to close the envelopes. Our Single Window envelopes with strong adhesives are designed to immediately create a strong seal so you do not have to worry about your contents being exposed to others.

Unlike weak sealing envelopes that allow your contents to fall out and become exposed, So much for a security envelope, Our strong seal will ensure the safety of your contents.

24 LB White Wove Paper that creates a professional look and feel from out of the box all the way to your destination


Customer
2025-08-24 17:08:05
I don't have time to write a review, especially on a product that's "just what I expected"... but I'll make the time for products that are better than expected! First - the price drew me in. They are slightly less than their competitors - and over time it adds up. Second - the quality is great, which makes no sense since they cost less. Their paper is heavy - even if it's supposed to be the same as the others, it feels slightly heavier to me. The gum flap seals tightly; and this item is definitely a "privacy" envelope - which was important because I use them for Intuit QuickBooks payroll Direct Deposit advice printouts. Tri-fold the Direct Deposit printout - and the employee name and address fits perfectly in the window - with no other personnel info showing. LOVE THEM.
Kmashawn80
2025-08-11 11:01:05
Came fast. Served my needs
R Kellom
2025-08-04 17:18:03
Use at church- works well
umpire109
2025-08-01 15:10:54
These window envelopes meet my needs, and I would buy them again. 500 for $19.99 was a good price. The envelopes are lighter-weight than I am used to, but that's OK. So far I have had no trouble licking and sealing the batch that I received. For return address, they probably go thru an ink-jet printer OK, but in my laser-printer they get compressed and a little bit wrinkled. I am guessing that the heat of the laser-jet shrinks the plastic film of the window. But for me, printed stick-on return-address labels are fine.
Timbolicus Prime
2025-07-25 10:41:09
All envelopes are in a sturdy cardboard box, free from damage that could be caused by delivery.Security tint is satisfactory.Paper quality is good and allowed me to color print return address using an inkjet printer without any issue.Closure is good when moistened.Price is far better than I could find anywhere else. Local office supply store did not carry a comparable item, so I took a chance and I am not disappointed by the outcome
GAPeach
2025-07-20 11:23:27
Good product, delivery and price
Yarnell Fire District
2025-07-10 18:47:10
Like the one window envelope - we have an address stamp we use for return address. Our checks show the County address (Fire District) and we always needed a label to put over the county return address. So the one window is perfect.REWRITTEN: Don't put anything on the memo line and it's perfect window envelope. It's not a self seal so a water thingy will have to do or lick it. Easy envelope to use especially with Quickbooks checks.
Customer
2025-06-19 16:52:33
happy with order
Customer
2025-05-24 13:08:28
mon conjoint les adores ça le tiens au chaud
yvan lépine
2025-01-17 14:50:23
aucun
PARE CHRISTIANE
2024-12-07 16:02:10
pour envoyer des lettres aux clients, Merci
Vito galati
2024-12-05 09:09:17
Windowed envelopes save on writing
Joe D
2024-11-28 09:01:14
We find this product a better value than the other envelopes we used in the past.Good adhesion and like that you can not see the item inside. Good thickness.Will order again.
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