---
product_id: 101740273
title: "#9 Security Tinted Double Window Envelopes for Invoices and Documents, Self-Seal, 3-7/8\" x 8-7/8\", White, 500-Pack"
brand: "amazon basics"
price: "S$109"
currency: SGD
in_stock: true
reviews_count: 13
category: "Amazon Basics"
url: https://www.desertcart.sg/products/101740273-9-security-tinted-double-window-envelopes-for-invoices-and-documents
store_origin: SG
region: Singapore
---

# 500-pack bulk value Security tinted privacy Double window display #9 Security Tinted Double Window Envelopes for Invoices and Documents, Self-Seal, 3-7/8" x 8-7/8", White, 500-Pack

**Brand:** amazon basics
**Price:** S$109
**Availability:** ✅ In Stock

## Summary

> 📬 Seal your success with style and security!

## Quick Answers

- **What is this?** #9 Security Tinted Double Window Envelopes for Invoices and Documents, Self-Seal, 3-7/8" x 8-7/8", White, 500-Pack by amazon basics
- **How much does it cost?** S$109 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/101740273-9-security-tinted-double-window-envelopes-for-invoices-and-documents)

## Best For

- amazon basics enthusiasts

## Why This Product

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

## Key Features

- • **Privacy First:** Security tint ensures confidential documents stay confidential
- • **Bulk Powerhouse:** 500 envelopes per pack to keep your office running without pause
- • **Effortless Seal:** Peel & Seal closure for quick, no-mess mailing
- • **Double Window Clarity:** Sender and recipient addresses visible without extra effort
- • **Durable & Professional:** 24-pound white wove paper combines strength with a clean, polished look

## Overview

Amazon Basics #9 Security Tinted Double Window Envelopes come in a bulk 500-pack, featuring a self-seal Peel & Seal closure and security tint to protect sensitive documents. Sized at 3-7/8" x 8-7/8", these durable 24-pound white wove paper envelopes display sender and recipient addresses through double windows, making them ideal for professional invoicing and confidential mailing needs.

## Description

Product Description desertcart Basics #9 Envelopes with Peel & Seal, Double Window, Security Tinted, 500-Pack From the Manufacturer desertcart Basics

Review: Good envelopes - These envelopes work perfectly for QuickBooks checks.
Review: Decent quality - Good for the price!

## Features

- 500-count pack of #9 security envelopes with Peel & Seal closure―no moisture needed
- Interior security tint keeps content private; securely send checks, invoices, or other confidential documents
- Double window allows sender and recipient addresses to show through
- 24-pound white wove paper for quality and strength; ideal for home or office
- Measures 3-7/8 by 8-7/8 inches each

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GSPSWY5 |
| Additional Features | Self-Adhesive Closure |
| Best Sellers Rank | #2,850 in Office Products ( See Top 100 in Office Products ) #20 in Business Mailing Envelopes |
| Brand Name | Amazon Basics |
| Closure Type | Self-Seal |
| Color | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,369) |
| Global Trade Identification Number | 00085227981660 |
| Item Dimensions L x W | 8.87"L x 3.88"W |
| Item Shape | Rectangular |
| Item Weight | 6 Pounds |
| Manufacturer | Amazon |
| Material Type | Paper |
| Model Name | Amazon Basics #9 |
| Number of Items | 1 |
| Occasion | Mailing |
| Occasion Type | Home,Office |
| Recommended Uses For Product | Security |
| Size | 1 X 3.88 X 8.8 Inch |
| Style | Peel & Seal |
| UPC | 085227981660 |
| Unit Count | 500.0 Count |

## Product Details

- **Brand:** Amazon Basics
- **Closure Type:** Self-Seal
- **Color:** White
- **Material:** Paper
- **Occasion:** Mailing

## Images

![#9 Security Tinted Double Window Envelopes for Invoices and Documents, Self-Seal, 3-7/8" x 8-7/8", White, 500-Pack - Image 1](https://m.media-amazon.com/images/I/618nDF7X0CL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good envelopes
*by H***L on March 7, 2026*

These envelopes work perfectly for QuickBooks checks.

### ⭐⭐⭐⭐⭐ Decent quality
*by J***I on December 20, 2025*

Good for the price!

### ⭐⭐⭐⭐⭐ Great price for Basic Envelopes
*by D***N on December 15, 2025*

Works as described for great price

## Frequently Bought Together

- Amazon Basics #9 Self-Seal Envelopes with Peel and Seal, Double Window, Security Tinted, 500-Pack, 1 X 3.88 X 8.8 inch, White
- Amazon Basics Multipurpose Copy Printer Paper, 8.5" x 11", 20 lb, 8 Reams, 4000 Sheets, 92 Bright, White
- Amazon Basics #10 Security-Tinted Self-Seal Business Letter Envelopes, Peel & Seal Closure - 500-Pack, White

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**Shop now:** [https://www.desertcart.sg/products/101740273-9-security-tinted-double-window-envelopes-for-invoices-and-documents](https://www.desertcart.sg/products/101740273-9-security-tinted-double-window-envelopes-for-invoices-and-documents)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-30*