---
product_id: 299294037
title: "100 Pack Rigid Mailers 6x8 - Sturdy 450 GSM Self-Adhesive Kraft Paper Cardboard Envelopes for Mailing Photo, Documents, Gift Cards, CDs, Art Prints"
brand: "stockroom plus"
price: "¥19215"
currency: JPY
in_stock: true
reviews_count: 11
category: "Stockroom Plus"
url: https://www.desertcart.jp/products/299294037-100-pack-rigid-mailers-6x8-sturdy-450-gsm-self-adhesive
store_origin: JP
region: Japan
---

# Perfect 6x8 inch size for 5x7 photos Bulk pack of 100 for constant mailing readiness 450 GSM thick rigid cardboard for max protection 100 Pack Rigid Mailers 6x8 - Sturdy 450 GSM Self-Adhesive Kraft Paper Cardboard Envelopes for Mailing Photo, Documents, Gift Cards, CDs, Art Prints

**Brand:** stockroom plus
**Price:** ¥19215
**Availability:** ✅ In Stock

## Summary

> 📬 Ship Smart, Ship Sturdy — Never Compromise on Protection!

## Quick Answers

- **What is this?** 100 Pack Rigid Mailers 6x8 - Sturdy 450 GSM Self-Adhesive Kraft Paper Cardboard Envelopes for Mailing Photo, Documents, Gift Cards, CDs, Art Prints by stockroom plus
- **How much does it cost?** ¥19215 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/299294037-100-pack-rigid-mailers-6x8-sturdy-450-gsm-self-adhesive)

## Best For

- stockroom plus enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Convenience:** 100-pack supply means you’re always ready to ship with professional-grade mailers.
- • **Unmatched Durability:** 450 GSM rigid kraft paper resists bending & tearing, keeping your valuables pristine.
- • **Versatile & Professional:** Perfect for business or personal use—mail art prints, CDs, trading cards with confidence.
- • **Secure Self-Adhesive Seal:** Strong adhesive strip ensures your mail stays sealed and tamper-proof during transit.
- • **Tailored for Photos & Documents:** Ideal 6x8 inch size fits 5x7 photos, certificates, and gift cards flawlessly.

## Overview

This 100-pack of 6x8 inch rigid mailers crafted from 450 GSM kraft paper offers superior protection against bending and damage. Featuring a secure self-adhesive closure, these sturdy envelopes are perfectly sized for 5x7 photos, documents, and small collectibles. Ideal for professionals and creatives alike, the bulk set ensures you’re always prepared to send your items with a polished, durable, and reliable mailing solution.

## Description

The 6x8 Rigid Mailer Set provides a practical and durable solution for diverse mailing needs. This collection of 100 mailing envelopes is constructed from sturdy cardboard paper, ensuring robust protection for items such as photos, documents, and collectible cards. As the colder months approach, these mailers are particularly suitable for keeping contents secure and protected from adverse conditions. These mailers are ideal for artists sending small art pieces or businesses dispatching important documents, given their ability to resist bending and tearing. Each mailer features an adhesive closure, maintaining the integrity of your packages during transit. Their professional brown design adds a touch of elegance, making them suitable for both business correspondence and personal mementos. Perfectly sized for 5x7 photos, these mailers serve as excellent photo mailers or document envelopes. They accommodate a wide range of items, including CDs, small art products, and trading cards, making them a versatile addition to any home or office setup. The flat mailer design ensures a neat appearance, presenting a polished look upon arrival. Lightweight yet durable, these mailers provide maximum protection without adding unnecessary bulk, facilitating easy storage and readiness for use. Whether used as a card envelope, gift card envelope, or for other mailing purposes, these mailers present an efficient solution for all your mailing tasks. An essential resource for anyone frequently sending mail, the 6x8 size and resilient construction make these envelopes a reliable choice for ensuring items are delivered securely and professionally.

Review: Perfect for mailing cards/prints - There are a lot of "rigid" mailers out there but these are very thick and very sturdy. If you are mailing cards or other paper products, these are going to give you the best chance of no bending from the mail people. I have also ordered the cheaper ones but they are flimsy and require you to add a cardboard insert anyway so it ends up coming out to the same price as these sturdier ones. These also look more professional, if you are using for business.
Review: Great quality mailers for a decent price! - These mailers are perfect for shipping my desertcart Handmade Greeting Cards. The 6 by 8 inches is perfect for my 5x7 cards. There is just enough room for the cards and a plastic protective sleeve. They are as sturdy as the mailers used by a well known printing company. They shouldn't bend in transport. I shopped around a lot and you can't beat these for quality and price. I highly recommend these mailers.

## Features

- Sturdy Mailing Solution: Protect art prints, photos, certificates, and documents with these rigid cardboard mailers that resist bending. Each envelope features an adhesive strip for secure closure during transit, ensuring contents remain intact
- Thick and Durable: Constructed from 450gsm material, these mailers provide superior protection against bending and scratching. Ideal for photo mailers and document envelopes, they offer durability without adding unnecessary weight to your shipments
- Perfect Size for Photos: Measuring 6x8 inches, these envelopes are perfectly sized for 5x7 photos, making them an excellent choice for picture envelopes. Personalize them with logos, stamps, or colorful ink to enhance your gift or office presentation
- Convenient Bulk Set: This bulk set of 100 cardboard mailing envelopes ensures you always have a sturdy envelope on hand. Ideal for both professional office settings and personal use, they provide a practical solution for all your mailing needs
- Versatile Design: These stiff envelope mailers are suitable for mailing collectibles, art products, and trading cards. Their professional appearance makes them perfect for both business documents and personal mementos, enhancing your mailing experience

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08QYVLCQZ |
| Best Sellers Rank | #97,445 in Office Products ( See Top 100 in Office Products ) #570 in Envelope Mailers |
| Brand | Stockroom Plus |
| Color | Kraft Paper |
| Customer Reviews | 3.8 3.8 out of 5 stars (271) |
| Date First Available | December 18, 2020 |
| Item Weight | 7.34 pounds |
| Item model number | SZZTJ |
| Manufacturer Part Number | SZZTJ |
| Material Type | Paper |
| Number of Items | 100 |
| Product Dimensions | 8 x 6 x 0.01 inches |
| Shape | Rectangular |
| Size | 6x8 |

## Product Details

- **Brand:** Stockroom Plus
- **Color:** Kraft Paper
- **Material:** Paper
- **Number of Items:** 100
- **Special Feature:** Self-Adhesive Closure

## Images

![100 Pack Rigid Mailers 6x8 - Sturdy 450 GSM Self-Adhesive Kraft Paper Cardboard Envelopes for Mailing Photo, Documents, Gift Cards, CDs, Art Prints - Image 1](https://m.media-amazon.com/images/I/71NtcPuqMOL.jpg)
![100 Pack Rigid Mailers 6x8 - Sturdy 450 GSM Self-Adhesive Kraft Paper Cardboard Envelopes for Mailing Photo, Documents, Gift Cards, CDs, Art Prints - Image 2](https://m.media-amazon.com/images/I/71JfKKJtyeL.jpg)
![100 Pack Rigid Mailers 6x8 - Sturdy 450 GSM Self-Adhesive Kraft Paper Cardboard Envelopes for Mailing Photo, Documents, Gift Cards, CDs, Art Prints - Image 3](https://m.media-amazon.com/images/I/71OAn+dwU9L.jpg)
![100 Pack Rigid Mailers 6x8 - Sturdy 450 GSM Self-Adhesive Kraft Paper Cardboard Envelopes for Mailing Photo, Documents, Gift Cards, CDs, Art Prints - Image 4](https://m.media-amazon.com/images/I/718ZHqivooL.jpg)
![100 Pack Rigid Mailers 6x8 - Sturdy 450 GSM Self-Adhesive Kraft Paper Cardboard Envelopes for Mailing Photo, Documents, Gift Cards, CDs, Art Prints - Image 5](https://m.media-amazon.com/images/I/7125ThMc1qL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for mailing cards/prints
*by A***R on November 29, 2023*

There are a lot of "rigid" mailers out there but these are very thick and very sturdy. If you are mailing cards or other paper products, these are going to give you the best chance of no bending from the mail people. I have also ordered the cheaper ones but they are flimsy and require you to add a cardboard insert anyway so it ends up coming out to the same price as these sturdier ones. These also look more professional, if you are using for business.

### ⭐⭐⭐⭐⭐ Great quality mailers for a decent price!
*by D***3 on August 30, 2023*

These mailers are perfect for shipping my Amazon Handmade Greeting Cards. The 6 by 8 inches is perfect for my 5x7 cards. There is just enough room for the cards and a plastic protective sleeve. They are as sturdy as the mailers used by a well known printing company. They shouldn't bend in transport. I shopped around a lot and you can't beat these for quality and price. I highly recommend these mailers.

### ⭐ Bad adhesive
*by A***G on August 22, 2025*

Bad adhesive :( Was very excited to use because the sturdiness of the mailer was just what I had been looking for, but once I had it all packaged up and ready to ship, I noticed the backing had opened up. So the sturdiness is great, just bad adhesive.

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**Shop now:** [https://www.desertcart.jp/products/299294037-100-pack-rigid-mailers-6x8-sturdy-450-gsm-self-adhesive](https://www.desertcart.jp/products/299294037-100-pack-rigid-mailers-6x8-sturdy-450-gsm-self-adhesive)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-21*