---
product_id: 447022141
title: "Columbian #9 Security Envelopes, 500 Pack, No Window Self Seal Envelopes for Business Mailings, 3-7/8\" x 8-7/8\", Durable 24 lb White Paper"
brand: "columbian"
price: "273 zł"
currency: PLN
in_stock: true
reviews_count: 9
url: https://www.desertcart.pl/products/447022141-columbian-9-security-envelopes-500-pack-no-window-self-seal
store_origin: PL
region: Poland
---

# Bulk 500-pack for uninterrupted workflow Blue security tint blocks prying eyes Self-seal closure saves time Columbian #9 Security Envelopes, 500 Pack, No Window Self Seal Envelopes for Business Mailings, 3-7/8" x 8-7/8", Durable 24 lb White Paper

**Brand:** columbian
**Price:** 273 zł
**Availability:** ✅ In Stock

## Summary

> 📬 Seal your success with style and security!

## Quick Answers

- **What is this?** Columbian #9 Security Envelopes, 500 Pack, No Window Self Seal Envelopes for Business Mailings, 3-7/8" x 8-7/8", Durable 24 lb White Paper by columbian
- **How much does it cost?** 273 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/447022141-columbian-9-security-envelopes-500-pack-no-window-self-seal)

## 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:** Peel-and-press self-seal closure eliminates licking, speeding up your mailing process and keeping things clean.
- • **Confidentiality on Lock:** Blue security tint with safety pattern ensures your sensitive info stays private, even under light scrutiny.
- • **Professional Presentation:** Durable 24 lb white wove paper with crisp side seams projects a polished, trustworthy business image.
- • **Bulk Supply, Zero Downtime:** 500 envelopes per box means you’re always ready to send, no last-minute runs to restock.
- • **Perfect Fit for Business Mail:** #9 size envelopes tailored for invoices, billing, and confidential documents—your go-to for secure, everyday mailings.

## Overview

Columbian #9 Security Envelopes combine a blue security tint and safety pattern to protect confidential information, durable 24 lb white paper for a professional look, and a convenient peel-and-press self-seal closure. Packaged in a bulk 500-count box, these envelopes are ideal for business mailings requiring privacy, efficiency, and a polished presentation.

## Description

Columbian #9 Security Envelopes are designed for everyday mailings that require privacy. These white envelopes can be used for anything from contracts and legal documents to personal letters and school forms. To help protect confidential information, each envelope features a blue security tint with an interior safety pattern that limits visibility through the paper. This added layer of privacy helps prevent sensitive details from being read during handling or delivery, even when held up to light. The durable 24 lb white wove paper and side seams provide durability during handling and mailing. These self seal envelopes are time-savers. The Release & Seal peel-and-press adhesive creates a strong seal without moisture, helping streamline workflows and keep hands, desks, and equipment clean. The adhesive remains protected until use, making these envelopes reliable even after extended storage. With 500 envelopes per box, this bulk pack supports consistent mailing needs without frequent restocking. Columbian Security Envelopes offer a smart solution for businesses that value privacy, efficiency, and a polished presentation in every mailing. (Manufacturer Item Number: COLO183)

Review: Speedy delivery. Low price per envelope. - High quality. Effective self-seal.
Review: Product - Perfect!

## Features

- PROTECT SENSITIVE DETAILS: A blue security tint with safety pattern blocks visibility, helping safeguard confidential information from prying eyes, even when held up to light
- IDEAL FOR BUSINESS & BILLING MAIL: #9 envelopes are commonly used for invoices, billing paperwork, tax documents, and accounting records requiring privacy
- 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 look that reflects well on your business and holds up in transit
- STOCK-UP VALUE PACK: 500 business envelopes per box keep offices and home businesses ready to mail; #9 envelopes measure 3-7/8 x 8-7/8 inches for everyday business needs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09XFTJ4S8 |
| Additional Features | Self-Adhesive Closure |
| Best Sellers Rank | #25,955 in Office Products ( See Top 100 in Office Products ) #93 in Business Mailing Envelopes |
| Brand Name | Columbian |
| Closure Type | Self-Seal |
| Color | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (129) |
| Item Dimensions L x W | 8.88"L x 3.88"W |
| Item Shape | Rectangular |
| Item Weight | 5 Pounds |
| Manufacturer | TOPS Products |
| Material Type | Paper |
| Number of Items | 500 |
| Occasion Type | Business |
| Recommended Uses For Product | Security |
| Size | #9 |
| Style | Box |
| UPC | 026900001831 |
| Unit Count | 500 Count |

## Product Details

- **Brand:** Columbian
- **Closure Type:** Self-Seal
- **Color:** White
- **Material:** Paper
- **Number of Items:** 500

## Images

![Columbian #9 Security Envelopes, 500 Pack, No Window Self Seal Envelopes for Business Mailings, 3-7/8" x 8-7/8", Durable 24 lb White Paper - Image 1](https://m.media-amazon.com/images/I/71mRtlyLI2L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Speedy delivery. Low price per envelope.
*by J***E on January 29, 2026*

High quality. Effective self-seal.

### ⭐⭐⭐⭐⭐ Product
*by R***D on December 23, 2025*

Perfect!

### ⭐⭐⭐⭐⭐ Sturdy envelopes
*by C***G on October 31, 2025*

Great envelopes and the right size.

## Frequently Bought Together

- Columbian #9 Security Envelopes, No Window, Self Seal, for Invoices & QuickBooks Statements, 3-7/8 x 8-7/8 Inches, 24 lb White, 500/Box (COLO183)
- Top Flight PSTF10NWT #10 Envelopes, Strip & Seal, Security Tinted, White Paper, 24 lb, 500 Count
- Amazon Basics #10 Security-Tinted Self-Seal Business Envelopes with Left Window, Peel & Seal Closure - 500-Pack, White

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pl/products/447022141-columbian-9-security-envelopes-500-pack-no-window-self-seal](https://www.desertcart.pl/products/447022141-columbian-9-security-envelopes-500-pack-no-window-self-seal)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-02*