Top 10 SELF Sealing Envelopes #9 – Business Mailing Envelopes

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1. Blue Summit Supplies

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500 No. 9 Flip and Seal Double Window Security Envelopes, Designed for Quickbooks Invoices and Business Statements with Self Seal Flip Press and Seal Flap -Number 9 Size 3 7/8 Inch X 8 7/8 Inch

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Blue Summit Supplies #ad - Perfectly fits quickbooks invoices and business statements: sender and return address will be visible on your QuickBooks invoices and monthly bills through our unique double window design.

Provides complete business mail security: your invoices and statements will be completely hidden with our dark security tint design. Save time with easy to use flip and seal self-seal design; With no need for licking or moistening, our self seal design allows for sending hundreds of invoices quickly and easily and is guaranteed to stay sealed with no need for tape or glue sticks. Quickly and easily stuff our wide envelopes with several invoices or business statements. Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Weight5.27 Pounds
Part NumberBSS-92588-007

2. EnDoc

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White Business Envelope, 3 7/8x8 7/8 Inch Windowless, Security tinted Pattern, EnDoc #9 Self Seal Security Tinted Envelope, 500 Box Strong Peel and Seal

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EnDoc #ad - This makes them perfect for mass envelope printing when doing multiple business mail or quick hand addressing for home use. Ideal for sensitive documents: these letter sized envelopes come with premium security tinted patterns for extra protection for sensitive information.

Easy self-seal design: the tamper-proof self-adhesive design on our mailing envelopes allow you to quickly and easily seal them with zero licking. All you need to do is remove the seal’s fold-over flap and stick the lip. The pack of 500 also gives you better value for your money, making them ideal envelopes for both home and office use. Printer-friendly design: the windowless design of our security tint envelopes not only makes them more secure but also provides a printable surface on the front panel for easier print labeling or hand addressing.

They are perfect for keeping confidential documents like business and legal documents safe from unauthorized prying eyes till they reach the desired destination. This is a more convenient and more secure option compared to conventional adhesive strips. Perfect for business use: our neutral white business envelopes # 9 3 7/8 x 8 7/8 are convenient for all-round use and perfectly fit standard 8. 5’’ x 11’’” letters, documents, checks, invoices, return envelopes and more.
BrandEnDoc #ad
ManufacturerBusiness Envelopes #ad
Part NumberBUS357
ModelBUS357

3. Blue Summit Supplies

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Security Tinted with Printer Friendly Design, Number 10 Size 4 1/8 x 9 ½ Inch 100 Pack, 100 No. 10 Self Seal Security Envelopes, Designed for Secure Mailing

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Blue Summit Supplies #ad - Our printer friendly envelopes with smooth thick paper saves you time and frustration while printing without having to worry about jamming. Easily print name or logo on our low profile envelope design.

Easily fits invoices, letters, checks, and more. Easily store and quickly use our 24 LB white wove envelopes with our 100 count value pack with small package design. Perfect for secure everyday home and business mailing. Just peel and seal to create a strong lasting seal without licking or moistening. Our self seal design is quick and easy and is guaranteed to stay sealed with no need for tape or glue sticks.

Our security #10 Windowless Envelopes perfectly fit standard 8. 5’’ x 11’’ paper sizes and other large documents. No need to worry about others seeing your documents, our dark black security tint completely hides you mail. These envelopes are designed for both Laser and Inkjet Printers. Provides complete mail security.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Weight0.01 Pounds
Part NumberBSS-92588-015
ModelSG_B071R9SBXJ_US

4. ValBox

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ValBox 6x9 Self Seal Security Catalog Envelopes 250 Count Small White Envelopes for Mailing, Storage and Organizing

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ValBox #ad - Printer friendlyself sealing catalog envelope is thick enough, therefore no need to worry that the ink will bleed out or go fuzzy when you run these through your laser or inkjet printers to print address, shipping labels and etc. 6 x 9 inches, office, 250 packs self sealing design is a specific feature of these small catalog envelopes, business, which can save your time and money for no licking and long shelf life free for dust.

Multi-purpose & provides complete security these catalog mailing envelopes are perfect for mailing folded sheets of papers, bulletins, photos, handmade cards, wedding invitations, Christmas cards or storing some small items in. Convenient storagevalbox 6x9 envelopes come with a sturdy box for protecting them from damaged during transportation, good for the unused catalog envelopes organize and storage.

It will be more easier than sponges or glue sticks and assure contents will not fall out during transit. Quality kraft envelopes & strong stickymade of durable paper for exceptional rip, tear and puncture resistance. Thick opaque paper prevents others from seeing your contents. Keep your item safe and protect your privacy. Suitable for home, legal and more. Valbox white catalog envelope is with a strong flap adhesive, you just need to pull the tab and it will self seals.
BrandValBox #ad
ManufacturerValBox #ad
Part NumberVB024

5. Columbian Envelopes

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White, Self-Sealing, 500 per Box COLO166, for Invoices and Statements, Columbian #9 Double-Window Security Envelopes, 3-7/8 x 8-7/8 Inches

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Columbian Envelopes #ad - Each #9 envelope is easy to open and close; simply remove the Release & Seal strip and press the flap closed for a clean, sanitary seal; use the pull strip to open without difficulty.

Stock up on boxes of 500 window envelopes and save; great for bulk mailings, these number 9 envelopes show sender and receiver addresses and can be run through a postage machine. Box of 500 columbian white double window #9 envelopes 3-7/8" x 8-7/8" with a SimplySafe tamper-evident seal and peel off Release & Seal closure; top window: 7/8" x 3 1/2"; bottom window: 1" x 4". Protect critical documents or your customers' sensitive data; these tinted envelopes have a reflex blue pattern that obscures the details of what's inside. Columbian #9 double window envelopes have a patented SimplySafe seal that will show signs of tampering, safeguarding against unauthorized opening.
BrandColumbian Envelopes #ad
ManufacturerTOPS Products #ad
Height3.75 Inches
Length12.13 Inches
Width9.13 Inches
Part NumberCOLO166
ModelCOLO166

6. Blue Summit Supplies

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Pack of 500, 500 No. 9 Self Seal Security Envelopes – Peel and Seal Designed for Secure Mailing, Security Tinted with Printer Friendly Design, Number 9 Size 3 7/8 Inch X 8 7/8

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Blue Summit Supplies #ad - Just peel and seal to create a strong lasting seal without licking or moistening. Our printer friendly envelopes with smooth thick paper saves you time and frustration while printing without having to worry about jamming.

No need to worry about others seeing your documents, our dark black security tint completely hides your mail. Our self seal design is quick and easy and is guaranteed to stay sealed with no need for tape or glue sticks. These envelopes are designed for both laser and inkjet printers. Our security #9 windowless envelopes perfectly fit standard 8.

5’’ x 11’’ paper sizes and other large documents. Maintains professional look and feel throughout transit with our durable 24 lb white wove envelope paper. Perfect for secure everyday home and business mailing. Easily fits invoices, letters, checks, and more. Easily print hundreds of envelopes with our low profile envelope design. Provides complete mail security.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Part NumberBSS-92588-034

7. ValBox

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Storage and Organizing, ValBox 6x9 Self Seal Catalog Security Envelopes 250 Count Small Brown Kraft Envelopes for Mailing

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ValBox #ad - Thick opaque paper prevents others from seeing your contents. Suitable for home, 250 packs self sealing design is a specific feature of these small catalog envelopes, business, office, legal and more.6 x 9 inches, which can save your time and money for no licking and long shelf life free for dust.

Convenient storagevalbox 6x9 envelopes come with a sturdy box for protecting them from damaged during transportation, good for the unused catalog envelopes organize and storage. It will be more easier than sponges or glue sticks and assure contents will not fall out during transit. Printer friendlyself sealing catalog envelope is thick enough, therefore no need to worry that the ink will bleed out or go fuzzy when you run these through your laser or inkjet printers to print address, shipping labels and etc.

Quality kraft envelopes & strong stickymade of durable paper for exceptional rip, tear and puncture resistance. Multi-purpose & provides complete security these catalog mailing envelopes are perfect for mailing folded sheets of papers, handmade cards, wedding invitations, photos, bulletins, Christmas cards or storing some small items in. Keep your item safe and protect your privacy. Valbox brown kraft catalog envelope is with a strong flap adhesive, you just need to pull the tab and it will self seals.
BrandValBox #ad
ManufacturerValBox #ad
Part NumberVB025

8. Blue Summit Supplies

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Number 10 Size 4 1/8 Inch X 9 ½ Inch, Perfect Size for Multiple Business Statements, Quickbooks Invoices, and Return Envelopes, 500 No. 10 Self Seal Double Window Security Envelopes

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Blue Summit Supplies #ad - Save time quickly stuffing multiple pieces of business mail in our wide and large #10 Security Envelope Design. No need to spend time and money stamping, or spending extra money on custom envelopes, adding return labels, just quickly slide in your business mail to create professional looking business mail.

Our security envelopes will quickly and easily create a strong seal for completely secure business mail. Provides complete business mail security: your business mail will be completely hidden with our dark security tint design. You can even stuff smaller #9 or #8 return envelopes to get your invoices paid quicker. Just peel and seal for a strong lasting seal. Perfect for mailing invoices, QuickBooks Invoices, billing statements, checks, and other business mail. Your return and sender address will line up perfectly.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Height4.4 Inches
Length11.9 Inches
Width10.1 Inches
Part NumberBSS-92588-003
Model74689

9. Quality Park

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White, 500 Per Box QUA24559 24559, 24-lb, 4-1/8" x 9-1/2", Invoices, Quality Park #10 Double-Window Self-Seal Security Envelopes, For Business Statements

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Quality Park #ad - Save with self-stick: quality park #10 double-window security envelopes have a fold-away, self-sealing flap that saves you time & money. Haste, not waste: redi-seal envelopes don’t require moisture, seal instantly & won't close and stick before you're ready—that means you won't find ruined samples in the box.

Formatted for business: double-windows display the sender & receiver addresses; fits invoices & statements from QuickBooks and other standard business software; laser and inkjet printer compatible. Enhanced security: offer the protection clients deserve & protect yourself from liability; a security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text. An excellent value: get 500 white wove 4-1/8 inch x 9-1/2 inch #10 envelopes per box at a stock-up price.
BrandQuality Park #ad
ManufacturerQuality Park #ad
Height4.13 Inches
Length14 Inches
Weight6.5 Pounds
Width9.63 Inches
Part Number24559
Model24559

10. Office Deed

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Office Deed 500 #9 Double Window SELF SEAL Security Envelopes-Designed for Quickbooks Invoices and Business Statements with peel and seal flap -3 7/8'' X 8 7/8''

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Office Deed #ad - They come in boxes of 500, so you can stock up for long-term use.  . Double window: #9 double window envelopes ideal for Quickbooks Invoices, Business Statement, Documents Secure Mailing. Quality: our no 9 security self seal envelopes made of 24-lb white wove.

The liner keeps the gum dust-free before use. Simply press flaps together for a secure, strong seal.  . Mail invoices, statements and other important documents with confidence. Wove finish adds a professional touch. Privacy: protect confidential client information with our security tinted envelopes. The blue tint pattern makes impossible to see the details of the contents, even when held up to the light.

Peel & seal closure: with the peel & seal closure, double window envelopes do not require licking to seal. 500 envelopes in each box: our #9 3 7/8'' x 8 7/8'' envelopes ideal for any document from official business letters to business statement. Our products will the perfect fit for all official purpose with high standard quality.
BrandOffice Deed #ad
ManufacturerOffice Deed #ad
Weight4.43 Pounds
Part NumberSSEDW9
ModelSSEDW9