---
product_id: 87893299
title: "Pratt MJ-4 Self-Seal Stay Flat Mailer, White, 9.75\" x 12 1/4\" (Pack of 100) (2-(Pack))"
brand: "pratt"
price: "A$84"
currency: AUD
in_stock: true
reviews_count: 8
category: "Office Products"
url: https://www.desertcart.com.au/products/87893299-pratt-mj-4-self-seal-stay-flat-mailer-white-9
store_origin: AU
region: Australia
---

# Pratt MJ-4 Self-Seal Stay Flat Mailer, White, 9.75" x 12 1/4" (Pack of 100) (2-(Pack))

**Brand:** pratt
**Price:** A$84
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Pratt MJ-4 Self-Seal Stay Flat Mailer, White, 9.75" x 12 1/4" (Pack of 100) (2-(Pack)) by pratt
- **How much does it cost?** A$84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/87893299-pratt-mj-4-self-seal-stay-flat-mailer-white-9)

## Best For

- pratt enthusiasts

## Why This Product

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

## Description

Size:2-(Pack)
            
          
          
        
      
    
  


        
        
     
	       
     

     
                              
     
       	       
        
         
        
        	
        	
        		
        			9 3/4&quot; x 12 1/4&quot; Self-Seal Stay Flat Mailer, White, 100/Carton.

## Features

- Strong, rigid paperboard mailers made with high quality recycled materials Durable mailer protects items, such as documents, photos, and CDs, while enhancing your corporate image
- Recycled content makes a positive contribution to environmental concerns 100% Recyclable
- Pressure-sensitive, self-sealing adhesive closure; reliable and tamper-evident Release liner peels off quickly and easily

## Images

![Pratt MJ-4 Self-Seal Stay Flat Mailer, White, 9.75" x 12 1/4" (Pack of 100) (2-(Pack)) - Image 1](https://images-na.ssl-images-amazon.com/images/I/31Bd9I6%2BIeL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Protects paper through USPS machines
*by J***E on June 8, 2016*

I am very pleased with these! I bought them to mail some 9 by 12 inch prints that I made. They fit the paper size well. They were sturdy enough to protect my prints with breaking or tearing. When I mailed them at the Post Office the clerk asked if it was OK that they go through regular mail (where the machines would bend them up to a 45 degree angle). [If you want to send them through USPS with something that should not be bent, you would just have to pay a dollar more per envelope to get them manual process and therefore skip the machines.] I took the gamble and said yes to the regular processing. Even so, they still arrived in good condition! I have not gotten any reports of damaged prints.

### ⭐⭐⭐⭐ Great value and has kept items safe. (Etsy seller here)
*by M***. on July 28, 2017*

As a first-time Etsy seller, I was nervous about all of it and trying to find the best shipment supplies to protect my products (within my budget). That said, I did a lot of research. I have only used a few of these so far, but I am impressed. They aren't rock solid firm or anything—they do bend a bit—but customers have all reported their success in keeping items safe and sound.I've been shipping art prints that are also wrapped in clear cello bags, for reference.

### ⭐⭐⭐⭐⭐ Perfect for My Needs
*by D***N on May 28, 2015*

I use these for sending out a 28-page hardcover children's book I wrote, illustrated, and released in April. It measures 8x8 and fits snugly in the flat mailer, but I made sure to leave a little over half an inch of space all around to allow the book to be easily removed from the mailer as well. The thickness of the mailer itself is what made me opt for this version. Despite my packages being tossed around in the back of trucks and into bins, etc., they can take the wear and tear, and books are delivered with no damage, which is what you want. I tested these myself and have verified with far off customers who have received them with no problems. Worth the buy!

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**Shop now:** [https://www.desertcart.com.au/products/87893299-pratt-mj-4-self-seal-stay-flat-mailer-white-9](https://www.desertcart.com.au/products/87893299-pratt-mj-4-self-seal-stay-flat-mailer-white-9)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-14*