Price: $11.33 - $9.75
(as of Sep 24, 2025 18:24:10 UTC – Details)
Quality Park #10 Security Envelopes are built to protect sensitive client information. For privacy, our security envelopes have a reflex blue tint with safety pattern to prevent prying eyes from reading sensitive information, even when held to light. You won’t miss licking the gummed seals on basic envelopes. Our Redi-Strip self seal envelopes are a tidy, timesaving upgrade ā just peel and press for a durable seal. 24 lb white wove paper with side seams give Quality Park windowless envelopes a professional appearance. These bright white safety envelopes are perfect for payroll, accounts payable and all sorts of confidential business applications. In boxes of 100. Envelope dimensions are 4-1/8 inches x 9-1/2 inches.
Quality Park #10 security envelopes (4-1/8 in x 9-1/2 in) are a staple for your private business mail; our secure, self sealing envelopes have Redi-Strip press-to-seal closures for maximum convenience
Security envelopes shield identification numbers and private data with a special security pattern to scramble the appearance of text; keeps envelope contents safe from prying eyes, even if held to light
Redi-Strip self sealing envelopes let you fly through mailings in record time; just peel the strip and press for a strong, durable seal
Each letter sized envelope is made of 24 lb white wove paper with #10 envelope dimensions (4 1/8″ x 9 1/2″); side seam construction gives you a large area for labeling, printing or hand addressing
#10 envelopes are a never-out office classic for a reason: these workhorse envelopes are economical, versatile and convenient for offices, businesses and schools
Customers say
Customers find these envelopes to be of good quality and value for money, with an adhesive strip that works perfectly for sealing. They work well for their intended purpose. The thickness and security features receive mixed feedback – while some praise the good thickness, others find them very thin, and while some consider them secure, others disagree. The sturdiness also gets mixed reviews, with some finding them sturdy while others describe them as flimsy.
šØ Creative Pick: Selected by our Art Stationers team for quality & inspiration.
ā ļø Note: Product details are provided by Amazon and may change. Art Stationers is an Amazon Affiliate and may earn commissions on qualifying purchases.
Keepin’ It Real Consumer –
Awesome Envelopes!
This is an honest review of the Quality Park 100 pack of security envelopes which I purchased and used many times.Pros: Quantity is good at 100 and will last a really long time. Design is good in that it has the security liner and the self adhesive sticker to seal. Personally, I bought these because I was tired of licking envelopes.Opportunities: None. These envelopes do exactly as they say they will.Overall: These are my go to envelopes anytime I have to pay a bill or write a letter.
Lewis A Edge Jr –
Decent Envelopes – Fair Price
After pricing similar #10 envelopes at my two local office supply stores I discovered that Amazon offered a lower price and FREE home delivery through my Prime account for this 500 envelope box.These envelopes were accurately represented on Amazon’s Web page. They feed through my laser printer from its multi-purpose tray without jamming, revealing clear address images including my imprinted bar code. After having to throw away a large quantity of envelopes that had sealed themselves when they were stored in a high-humidity location, I like that these envelopes do not need moisture to seal and have the adhesive protected with a removable waxy strip that prevents self-sealing.Not having these envelopes long enough to detect any possible deterioration during long-term storage, I cannot evaluate how well they hold up. However they appear to be well-made and seal effortlessly once the waxy strip is removed from the adhesive on the envelope’s flap.If the envelope is held up to a bright enough light, the so-called “Security Tint and Pattern” is not opaque enough to completely hide the envelope’s contents. If completely hiding the contents of your mail is a major concern, a heavier weight envelope might be a better choice, but these work great for me.In summary, these are good, all-purpose #10 envelopes sold at a competitive price and delivered FREE for Amazon Prime members.
Barb G –
Good Price and Quality
Exactly what I was looking for…security envelopes that you can’t see through that have self-adhesive strips on the flap. Good quality, quantity, and price.
Placeholder –
BUSINESS ENVELOPES
Delivered quickly. Nice business envelopes, secure, you can’t see through them. Perfect for mailing something privately, like a check.
David –
Worth the money
I like that you can seal the envelope and you get enough of them.
TriplePurple –
Mostly opaque. Self-sticks well. Works great through inkjet printers as #10 envelope
I like self-sticking envelopes and these stick just fine. They are mostly opaque, but if not opaque enough, you can always wrap paper around a check. Window lines up nicely with addresses. Work great as #10 standard size envelopes when printing through an inkjet printer. First order we received was a completely empty bag, so had to reorder. Amazon was great about it. That was probably some delivery issue, but who knows. Just watch for that.
William E Neely –
Good Product
Good Product
Scottmetcalf –
Postal
These are used for all my mailing needs. Amazon has some great products.
Cliente –
Excelente producto
Global Traveller –
Really nice envelopes at a really reasonable price. The paper is not cheap and the privacy of contents is maintained. Envelopes seal well. Very happy with purchase.
Sunil Kumar Garg –
Quality is good. But I think I have paid 5-6 times the going prices.
LENKISS –
Todo bien
JosĆ© Luis H. Prado LĆ³pez –
Excelente artĆculo. Muy Ćŗtil y prĆ”ctico.