---
product_id: 517090564
title: "Columbian #10 Security Envelopes, 500 Pack, Self Seal Envelopes for Home, School, and Business Mailings, No Window, 4-1/8 x 9-1/2 Inches, Durable 24 lb White Paper"
brand: "columbian"
price: "746 kr"
currency: DKK
in_stock: true
reviews_count: 13
category: "Columbian"
url: https://www.desertcart.dk/products/517090564-columbian-10-security-envelopes-500-pack-self-seal-envelopes-home
store_origin: DK
region: Denmark
---

# Peel & press self-seal closure Standard #10 size (4.13 x 9.5 in) Blue security tint blocks visibility Columbian #10 Security Envelopes, 500 Pack, Self Seal Envelopes for Home, School, and Business Mailings, No Window, 4-1/8 x 9-1/2 Inches, Durable 24 lb White Paper

**Brand:** columbian
**Price:** 746 kr
**Availability:** ✅ In Stock

## Summary

> 📬 Seal your success with style and security!

## Quick Answers

- **What is this?** Columbian #10 Security Envelopes, 500 Pack, Self Seal Envelopes for Home, School, and Business Mailings, No Window, 4-1/8 x 9-1/2 Inches, Durable 24 lb White Paper by columbian
- **How much does it cost?** 746 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/517090564-columbian-10-security-envelopes-500-pack-self-seal-envelopes-home)

## Best For

- columbian enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Sealing:** Self-adhesive peel & press closure saves time—no licking or extra tape needed.
- • **Professional & Durable:** Thick 24 lb white wove paper with side seams projects a crisp, high-quality image.
- • **Bulk Ready for Business:** 500-pack ensures you’re always stocked for home, school, or office mailing demands.
- • **Perfect Fit for Pro Docs:** Standard #10 size fits letter-sized papers folded into thirds for seamless mailing.
- • **Confidentiality Guaranteed:** Blue security tint with safety pattern shields sensitive info from prying eyes.

## Overview

Columbian #10 Security Envelopes offer a professional, secure mailing solution with a standard size perfect for business documents. Featuring a blue security tint to protect confidential contents and a convenient self-seal adhesive for quick closure, these durable 24 lb white envelopes come in a value-packed 500 count to keep your office or home mailing needs effortlessly covered.

## Description

Columbian #10 Business Envelopes are a great all-purpose solution for mailing letter-sized business documents. Designed for everyday office use, these standard white envelopes are ideal for correspondence, invoices, statements, checks, and marketing materials. Measuring 4-1/8\" x 9-1/2\", they comfortably fit standard 8-1/2\" x 11\" sheets folded into thirds.\n\nEach self seal envelope is made from durable 24 lb white wove paper, offering a professional look that reflects well on businesses and schools. A blue security tint with an interior safety pattern helps block visibility through the paper, protecting sensitive information from being read during handling or delivery. The plain front, no window design provides flexibility for a wide range of mailing needs, from correspondence to promotional materials. The peel-and-press adhesive strip creates a strong, reliable seal without moisture, helping keep hands, desks, and mailroom workflows clean and efficient. Beyond mailing, these envelopes are also commonly used as cash budgeting envelopes for organizing spending categories, sinking funds, or savings systems at home or in small offices.\n\nPackaged with 500 envelopes per box, Columbian #10 Self Seal Envelopes are a dependable, never-out essential for offices, small businesses, and households that value security, convenience, and organization in their daily mailing tasks. (Manufacturer Item Number: COLO151)

Review: Great Quality Envelopes for Everyday Use - These envelopes are sturdy, reliable, and perfect for mailing documents securely. The security tint inside gives extra privacy, and the self-seal adhesive works very well without needing extra tape. I also like that the paper feels durable and professional. The 500-pack is a great value for home, office, or business use. So far, the envelopes have held up nicely during shipping and storage. Definitely a convenient product to keep on hand for everyday mailing needs.
Review: Nice quality - These are very nice quality and they self sticking works well. Many others make me feel like I need to put a piece of tape over them to assure they stay sealed - not these. My second box!

## Features

- VERSATILE #10 BUSINESS ENVELOPES: Standard #10 size (4-1/8 x 9-1/2 inches) is ideal for mailing letter-sized documents folded into thirds, including invoices, statements, business letters, forms, and more
- SECURE MAILING ENVELOPES: A blue security tint with safety pattern blocks visibility, helping safeguard confidential information from prying eyes, even when held up to light
- SAVE TIME WITH SELF SEAL ENVELOPES: The Release & Seal self-seal closure lets you peel and press for a strong seal, eliminating the need to lick envelopes or use wet sponges
- PRESENT A PROFESSIONAL IMAGE: Thick 24 lb white wove paper with side seams creates a crisp, high-quality windowless envelope that reflects well on your business and holds up in transit
- BULK VALUE PACK: Stock up on 500 security envelopes that keep offices, small businesses, schools and homes stocked and ready for consistent mailing needs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BVBQR3L4 |
| Additional Features | Security Tint, Self-Adhesive Closure |
| Best Sellers Rank | #3,944 in Office Products ( See Top 100 in Office Products ) #24 in Business Mailing Envelopes |
| Brand | Columbian |
| Brand Name | Columbian |
| Closure Type | Self-Seal |
| Color | White |
| Customer Reviews | 4.8 out of 5 stars 1,438 Reviews |
| Item Dimensions L x W | 9.5"L x 4.13"W |
| Item Shape | Rectangular |
| Manufacturer | TOPS Products |
| Material | Paper |
| Material Type | Paper |
| Model Name | COLO151 |
| Number of Items | 500 |
| Occasion Type | Home |
| Recommended Uses For Product | Security |
| Size | 500 Count |
| Special Feature | Security Tint, Self-Adhesive Closure |
| Style | Classic |
| UPC | 026900561519 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Columbian
- **Color:** White
- **Material:** Paper
- **Number of Items:** 500
- **Special Feature:** Security Tint, Self Adhesive

## Images

![Columbian #10 Security Envelopes, 500 Pack, Self Seal Envelopes for Home, School, and Business Mailings, No Window, 4-1/8 x 9-1/2 Inches, Durable 24 lb White Paper - Image 1](https://m.media-amazon.com/images/I/719vktv+1wL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Quality Envelopes for Everyday Use
*by R***O on May 22, 2026*

These envelopes are sturdy, reliable, and perfect for mailing documents securely. The security tint inside gives extra privacy, and the self-seal adhesive works very well without needing extra tape. I also like that the paper feels durable and professional. The 500-pack is a great value for home, office, or business use. So far, the envelopes have held up nicely during shipping and storage. Definitely a convenient product to keep on hand for everyday mailing needs.

### ⭐⭐⭐⭐⭐ Nice quality
*by Z***Y on April 30, 2026*

These are very nice quality and they self sticking works well. Many others make me feel like I need to put a piece of tape over them to assure they stay sealed - not these. My second box!

### ⭐⭐⭐⭐⭐ Columbian #10 Security Envelopes, 500 Pack, Self Seal Envelopes
*by S***M on April 6, 2026*

I always purchase these envelopes. They are a great price. The size #10 is perfect for our needs. The adhesive seal is very strong. Good thickness to the paper.

## Frequently Bought Together

- Columbian #10 Security Envelopes, 500/Box, No Window, 4-1/8 x 9-1/2 Inches, Release & Seal Self Seal, White (COLO151)
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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-07-17*