---
product_id: 447022141
title: "#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: "₪263"
currency: ILS
in_stock: true
url: https://www.desertcart.co.il/products/447022141-9-security-envelopes-500-pack-no-window-self-seal-envelopes
store_origin: IL
region: Israel
---

# 500 count Security tint Self-seal design #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:** ₪263
**Availability:** ✅ In Stock

## Summary

> 📬 Secure Your Success with Style!

## Quick Answers

- **What is this?** #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?** ₪263 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/447022141-9-security-envelopes-500-pack-no-window-self-seal-envelopes)

## 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

- • **Longer Shelf Life:** Protective strips shield adhesive from dust, ensuring envelopes are always ready to use.
- • **Windowless Design:** Enjoy flexibility and enhanced privacy for invoices and statements.
- • **Convenient Self-Seal:** No moisture needed! Just press to seal and save time on your mailings.
- • **Protect Sensitive Data:** Keep your clients' information safe with a dense security pattern that obscures contents.
- • **Impressive Presentation:** Bright white 24-lb envelopes that elevate your business correspondence.

## Overview

The Columbian #9 Security Envelopes are a bulk pack of 500 windowless, self-sealing envelopes designed to protect sensitive information. With a reflex blue security pattern and a sturdy 24 lb weight, these envelopes are perfect for invoices, QuickBooks statements, and other important documents.

## Description

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)

## Features

- Large supply of 500 white #9 business envelopes protect your customers’ sensitive data; a reflex blue pattern safely obscures what’s inside; windowless 3 7/8 x 8 7/8 design for invoices & statements
- Release & Seal envelopes seal without moisture to save you loads of time; protective strips give envelopes a longer shelf life by shielding the adhesive from dust
- Guard your clients personal information with a security tint that makes envelopes hard to see through; a dense security pattern scrambles the appearance of text even when held to light
- For QuickBooks statements, invoices, or any sensitive business or legal correspondence; a windowless design gives you greater flexibility and protection from prying eyes
- An excellent value; get 500 bright white 24-lb envelopes that make an impression for business mailings and personal correspondence

## Product Details

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

## Images

![#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/61b33KaW3fL.jpg)
![#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 2](https://m.media-amazon.com/images/I/510hv-x0mvL.jpg)
![#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 3](https://m.media-amazon.com/images/I/71BzqmFCPBL.jpg)
![#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 4](https://m.media-amazon.com/images/I/61H2mvcC+2L.jpg)
![#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 5](https://m.media-amazon.com/images/I/61iUF28Ci7L.jpg)

## 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

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

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-03-12*