---
product_id: 21590540
title: "Aimoh 500#9 Double Window SELF Seal Security Envelopes - for Invoices, Statements & Documents, Security Tinted - Size 3-7/8 x 8-7/8-24 LB - 500 Count (30139)"
brand: "aimoh"
price: "£40.74"
currency: GBP
in_stock: true
reviews_count: 13
category: "Aimoh"
url: https://www.desertcart.co.uk/products/21590540-aimoh-500-9-double-window-self-seal-security-envelopes-invoices
store_origin: GB
region: United Kingdom
---

# Double windows for easy address visibility 3.87" x 8.87" size fits standard docs Quick seal adhesive for tamper-proof closure Aimoh 500#9 Double Window SELF Seal Security Envelopes - for Invoices, Statements & Documents, Security Tinted - Size 3-7/8 x 8-7/8-24 LB - 500 Count (30139)

**Brand:** aimoh
**Price:** £40.74
**Availability:** ✅ In Stock

## Summary

> 📬 Seal your success with style and security!

## Quick Answers

- **What is this?** Aimoh 500#9 Double Window SELF Seal Security Envelopes - for Invoices, Statements & Documents, Security Tinted - Size 3-7/8 x 8-7/8-24 LB - 500 Count (30139) by aimoh
- **How much does it cost?** £40.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/21590540-aimoh-500-9-double-window-self-seal-security-envelopes-invoices)

## Best For

- aimoh enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Business Ready:** 500 envelopes per box for uninterrupted professional mailings
- • **Precision Addressing:** Dual front windows perfectly align with printed templates
- • **Effortless Efficiency:** Self-seal adhesive saves time—no licking, no mess
- • **Ultimate Privacy Shield:** Security tinted wave patterns obscure sensitive info effortlessly
- • **Durability You Can Trust:** Thick, tear-resistant paper ensures safe delivery every time

## Overview

Aimoh's #9 Double Window Self-Seal Security Envelopes combine premium security tinting with dual front windows and a quick seal adhesive, delivering a reliable, time-saving solution for professional mailings. Sized at 3.87" x 8.87", these 24 LB envelopes come in a bulk pack of 500, perfect for protecting sensitive invoices, statements, and documents while enhancing your business’s mailing efficiency.

## Description

desertcart.com : Aimoh 500#9 Double Window SELF Seal Security Envelopes - for Invoices, Statements & Documents, Security Tinted - Size 3-7/8 x 8-7/8-24 LB - 500 Count (30139) : Office Products

Review: Exactly What We Needed for Our Business! - ⭐️⭐️⭐️⭐️⭐️ Exactly What We Needed for Our Business! We love these #9 FLIP & SEAL Double Window Security Envelopes. They’re perfect for sending invoices, statements, and other important documents. The self-sealing adhesive saves us so much time—no more licking or using a sponge to seal! The security tint is another huge plus, giving us peace of mind that sensitive information stays confidential. The size fits our standard business documents folded perfectly, and the double windows line up great with our printed templates. We’ve never had any issues with the glue sticking or envelopes tearing, even when sending out large batches at once. If you mail a lot of invoices or statements, I definitely recommend these. Good quality, reliable, and a great value for a box of 500!
Review: Quality for a good price - These envelopes are just perfect and better priced than the office supply stores

## Features

- #9 DOUBLE WINDOW QUICK SEAL SECURITY ENVELOPES; tired of cheap thin, easily torn envelopes? Aimoh's#9 Security Envelopes are the perfect solution, with premium security tint, extra large, easily read dual front windows and super secure quick seal adhesive
- SECURITY TINT; forget thin, easily read envelopes these premium #9 Security Envelopes are designed with security tinted wave patterns which easily obscure details, numbers and other data within, perfect for mailing business statements and invoices while protecting sensitive information
- DOUBLE WINDOWS; professional, easily read double front windows suitable for standard business and legal mailings, advertising campaigns and many more, eliminating constantly printing and hand writing addresses, Each envelope contains two front windows, a 1-3/16" X 3-1/2" top window positioned 3/8" from the left and 2" from the bottom and the bottom 1" X 4" window is 3/8" from the left and 1/2" from the bottom
- QUICK SEAL ADHESIVE; Aimoh's #9 Envelopes use ultra secure, quick seal adhesive to create a full, super secure seal across each envelope’s width that won’t easily open or tear as with cheaper gummed seals, perfect for larger and thicker documents
- LONG LASTING SUPPLY; ideal for everyday business use and professional mass mailings, each box of these premium #9 Security Envelopes provide a super long lasting 500 envelope supply, for the best value on the market!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0153SIHL2 |
| Additional Features | Double Window, Security Tint, Self-Adhesive Closure |
| Best Sellers Rank | #4,783 in Office Products ( See Top 100 in Office Products ) #31 in Business Mailing Envelopes |
| Brand Name | Aimoh |
| Closure Type | Self-Seal |
| Color | Self-Seal |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,398) |
| Global Trade Identification Number | 00851685007071 |
| Item Dimensions L x W | 8.87"L x 3.87"W |
| Item Shape | Rectangular |
| Item Weight | 0.01 Pounds |
| Manufacturer | Aimoh |
| Material Type | Paper |
| Model Name | FBA_30139 |
| Number of Items | 500 |
| Occasion Type | Campaigns |
| Recommended Uses For Product | Letter |
| Size | 500 Count |
| Style | Flat |
| UPC | 851685007071 |
| Unit Count | 500.00 Count |

## Product Details

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

## Images

![Aimoh 500#9 Double Window SELF Seal Security Envelopes - for Invoices, Statements & Documents, Security Tinted - Size 3-7/8 x 8-7/8-24 LB - 500 Count (30139) - Image 1](https://m.media-amazon.com/images/I/91doES9zlRL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exactly What We Needed for Our Business!
*by L***E on July 6, 2025*

⭐️⭐️⭐️⭐️⭐️ Exactly What We Needed for Our Business! We love these #9 FLIP & SEAL Double Window Security Envelopes. They’re perfect for sending invoices, statements, and other important documents. The self-sealing adhesive saves us so much time—no more licking or using a sponge to seal! The security tint is another huge plus, giving us peace of mind that sensitive information stays confidential. The size fits our standard business documents folded perfectly, and the double windows line up great with our printed templates. We’ve never had any issues with the glue sticking or envelopes tearing, even when sending out large batches at once. If you mail a lot of invoices or statements, I definitely recommend these. Good quality, reliable, and a great value for a box of 500!

### ⭐⭐⭐⭐⭐ Quality for a good price
*by V***E on February 5, 2026*

These envelopes are just perfect and better priced than the office supply stores

### ⭐⭐⭐⭐⭐ That they really stick
*by W***. on March 9, 2026*

These are good envelopes

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-05*