---
product_id: 502329473
title: "#10 Security Self-Seal Envelopes, No.10 Windowless Bussiness Envelopes, Security Tinted with Printer Friendly Design - Size 4-1/8 x 9-1/2 Inch - White - 24 LB - 500 Pack"
brand: "herkka"
price: "€ 130.59"
currency: EUR
in_stock: true
reviews_count: 13
category: "Herkka"
url: https://www.desertcart.fi/products/502329473-10-security-self-seal-envelopes-no-10-windowless-bussiness-envelopes
store_origin: FI
region: Finland
---

# Standard #10 size fits all business needs Premium security tint blocks prying eyes Printer-friendly, compatible with inkjet & laser #10 Security Self-Seal Envelopes, No.10 Windowless Bussiness Envelopes, Security Tinted with Printer Friendly Design - Size 4-1/8 x 9-1/2 Inch - White - 24 LB - 500 Pack

**Brand:** herkka
**Price:** € 130.59
**Availability:** ✅ In Stock

## Summary

> 🔐 Seal your success with security and style!

## Quick Answers

- **What is this?** #10 Security Self-Seal Envelopes, No.10 Windowless Bussiness Envelopes, Security Tinted with Printer Friendly Design - Size 4-1/8 x 9-1/2 Inch - White - 24 LB - 500 Pack by herkka
- **How much does it cost?** € 130.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/502329473-10-security-self-seal-envelopes-no-10-windowless-bussiness-envelopes)

## Best For

- herkka enthusiasts

## Why This Product

- Trusted herkka brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Privacy You Can Trust:** Dark navy security tint inside envelopes guarantees sensitive info stays confidential and unseen.
- • **Unbreakable Seal Confidence:** Peel & Seal closure with ultra-strong adhesive ensures your documents stay secure—no moisture, no fuss.
- • **Bulk Supply for Business Flow:** 500 envelopes per pack means you’re always ready for high-volume correspondence without running out.
- • **Seamless Printer Compatibility:** Works flawlessly with most inkjet and laser printers for fast, professional addressing every time.
- • **Effortless Professional Mailing:** Windowless, blank design perfect for custom addressing or labels—ideal for mass mailings and bulk office use.

## Overview

HERKKA #10 Security Self-Seal Envelopes offer a premium privacy solution with a dark navy security tint and ultra-strong peel & seal adhesive. Sized at 4-1/8 x 9-1/2 inches, these 24 LB windowless envelopes come in a bulk 500-pack, designed for professional, printer-friendly use in high-volume business mailing and confidential document handling.

## Description

desertcart.com : #10 Security Self-Seal Envelopes, No.10 Windowless Bussiness Envelopes, Security Tinted with Printer Friendly Design - Size 4-1/8 x 9-1/2 Inch - White - 24 LB - 500 Pack : Office Products

Review: 500 #10 self-seal envelopes, excellent price, excellent quality - Box of 500 envelopes, self-sealing and security lined. Certainly good value for money. I chose the "used" lot from desertcart, which is their version of "dent and scratch." This just means the outside box was damaged, the envelopes inside were just fine. A good way to save money when you don't mind packaging issues. The thing I really like about these #10 envelopes is the seal. Once you remove the backing paper, the seal really holds. You can NOT easily reopen it without it being obvious. Adhesive strength is well designed. This is key when security is an issue. Also, on that note, the security lining makes it impossible to see what is inside the envelope. These are standard size #10 business envelopes, standard thickness, not too thin. It will protect the contents quite well. So I would purchase this product again. Very happy with my order.
Review: Good Envelopes - Good quality. Good price. Use these all the time for our office.

## Features

- 500 PACK SELF SEAL BUSSINESS ENVELOPES：HERKKA #10 Security envelopes are designed with Peel & Seal closure—no moisture needed and a premium security tint to protect sensitive information and a super strong SELF-SEAL strip. Suitable for home or office; securely send checks, invoices, or other confidential documents
- PREMIUM SECURITY TINT PATTERN: The interior of our #10 Security envelopes use a dark navy, heavy coverage security tint to provide the protection contents and sensitive information, a security tint makes envelopes hard to see through that ensures upmost privacy
- SUITABLE FOR CHECK PRINTING DESIGN: HERKKA envelopes ideal for standard business & legal documents and sensitive correspondence, manufactured with a windowless blank design allows for easy address printing or labels for mass mailing or to simply keep a bulk supply on hand for your home office. Suitable for quick, mass business mailings
- EASY SEAL CLOSURE: Our #10 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing for any letter sized and larger documents without splitting
- LONG LASTING SUPPLY: Large sized envelopes and 500 envelopes in every pack for a long lasting supply, suitable for everyday business correspondence and large mailing tasks! Fully compatible with most ink jet and laser printers for quick and easy addressing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BD4DHJLP |
| Best Sellers Rank | #56,089 in Office Products ( See Top 100 in Office Products ) #171 in Business Mailing Envelopes |
| Brand | HERKKA |
| Brand Name | HERKKA |
| Closure Type | Self-Seal |
| Color | Black |
| Customer Reviews | 4.7 out of 5 stars 326 Reviews |
| Item Dimensions L x W | 9.5"L x 4.13"W |
| Item Shape | Rectangular |
| Manufacturer | HERKKA |
| Material | Paper |
| Material Type | Paper |
| Number of Items | 500 |
| Occasion | Business |
| Occasion Type | home, office |
| Recommended Uses For Product | Security |
| Size | 4 1/8 x 9 ½ inches |
| Style | Security Tinted |
| Unit Count | 500 Count |

## Product Details

- **Brand:** HERKKA
- **Color:** Black
- **Closure Type:** Self-Seal
- **Material:** Paper
- **Number of Items:** 500

## Images

![#10 Security Self-Seal Envelopes, No.10 Windowless Bussiness Envelopes, Security Tinted with Printer Friendly Design - Size 4-1/8 x 9-1/2 Inch - White - 24 LB - 500 Pack - Image 1](https://m.media-amazon.com/images/I/6121tRmtR+L.jpg)
![#10 Security Self-Seal Envelopes, No.10 Windowless Bussiness Envelopes, Security Tinted with Printer Friendly Design - Size 4-1/8 x 9-1/2 Inch - White - 24 LB - 500 Pack - Image 2](https://m.media-amazon.com/images/I/61u-FJLaaYL.jpg)
![#10 Security Self-Seal Envelopes, No.10 Windowless Bussiness Envelopes, Security Tinted with Printer Friendly Design - Size 4-1/8 x 9-1/2 Inch - White - 24 LB - 500 Pack - Image 3](https://m.media-amazon.com/images/I/61JwMk1A5XL.jpg)
![#10 Security Self-Seal Envelopes, No.10 Windowless Bussiness Envelopes, Security Tinted with Printer Friendly Design - Size 4-1/8 x 9-1/2 Inch - White - 24 LB - 500 Pack - Image 4](https://m.media-amazon.com/images/I/5150jKsvMZL.jpg)
![#10 Security Self-Seal Envelopes, No.10 Windowless Bussiness Envelopes, Security Tinted with Printer Friendly Design - Size 4-1/8 x 9-1/2 Inch - White - 24 LB - 500 Pack - Image 5](https://m.media-amazon.com/images/I/51duuQyJNnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 500 #10 self-seal envelopes, excellent price, excellent quality
*by T***7 on February 22, 2026*

Box of 500 envelopes, self-sealing and security lined. Certainly good value for money. I chose the "used" lot from Amazon, which is their version of "dent and scratch." This just means the outside box was damaged, the envelopes inside were just fine. A good way to save money when you don't mind packaging issues. The thing I really like about these #10 envelopes is the seal. Once you remove the backing paper, the seal really holds. You can NOT easily reopen it without it being obvious. Adhesive strength is well designed. This is key when security is an issue. Also, on that note, the security lining makes it impossible to see what is inside the envelope. These are standard size #10 business envelopes, standard thickness, not too thin. It will protect the contents quite well. So I would purchase this product again. Very happy with my order.

### ⭐⭐⭐⭐⭐ Good Envelopes
*by K***A on July 16, 2026*

Good quality. Good price. Use these all the time for our office.

### ⭐⭐⭐⭐⭐ quality and price
*by M***S on June 10, 2026*

these work well and are a great deal

## Frequently Bought Together

- #10 Security Self-Seal Envelopes, No.10 Windowless Bussiness Envelopes, Security Tinted with Printer Friendly Design - Size 4-1/8 x 9-1/2 Inch - White - 24 LB - 500 Pack
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**Shop now:** [https://www.desertcart.fi/products/502329473-10-security-self-seal-envelopes-no-10-windowless-bussiness-envelopes](https://www.desertcart.fi/products/502329473-10-security-self-seal-envelopes-no-10-windowless-bussiness-envelopes)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-10-26*