---
product_id: 87413035
title: "Pratt MJ-3 Self-Seal Stay Flat Mailer, White, 9\" x 11 1/2\" (Pack of 100) (2.Sets)"
brand: "pratt llc"
price: "R5855"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Office Products"
url: https://www.desertcart.co.za/products/87413035-pratt-mj-3-self-seal-stay-flat-mailer-white-9
store_origin: ZA
region: South Africa
---

# Pratt MJ-3 Self-Seal Stay Flat Mailer, White, 9" x 11 1/2" (Pack of 100) (2.Sets)

**Brand:** pratt llc
**Price:** R5855
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Pratt MJ-3 Self-Seal Stay Flat Mailer, White, 9" x 11 1/2" (Pack of 100) (2.Sets) by pratt llc
- **How much does it cost?** R5855 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/87413035-pratt-mj-3-self-seal-stay-flat-mailer-white-9)

## Best For

- pratt llc enthusiasts

## Why This Product

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

## Description

Size:2.Sets
            
          
          
        
      
    
  


        
        
     
	       
     

     
                              
     
       	       
        
         
        
        	
        	
        		
        			9&quot; x 11 1/2&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-3 Self-Seal Stay Flat Mailer, White, 9" x 11 1/2" (Pack of 100) (2.Sets) - Image 1](https://images-na.ssl-images-amazon.com/images/I/21ryohUxVDL.jpg)

## Customer Reviews

### ⭐ Mailer quality was degraded significantly, no longer has rigidity, stay flat or protect the content
*by G***A on December 15, 2017*

They changed the quality of this mailer in the most recent shipment i purchased, it was decent previously now it's only marginally better than usps mailers - meaning there is absolutely no rigidity nor does it stay flat. It will not protect your contents such as magazines/comic books against bending or anything.Have been a long time repeat customer, sadly this is another example of a company taking something that worked and try to cut quality, resulting in garbage.  I will not be buying this brand anymore going forward.

### ⭐⭐⭐⭐⭐ Great mailers.  Going back for more....
*by C***Y on August 16, 2016*

I've used all 100 of these mailers and I'm ordering more.  The mailers are rigid enough that I don't worry about the contents bending during shipment.  The adhesive on the flap is very sticky.  If you forget something and try to re-open the flap, it will rip the cardboard before the adhesive gives way (that's a good thing).  With cheaper mailers I have had to use packing tape to seal the flap because the adhesive didn't seem very trustworthy.  With these I have no concerns.  I use pouches to adhere my labels to the front of these mailers, and they also stick well to the surface.  I have zero complaints with these mailers.  I'm reordering more, and will continue to do so in the future.  Highly recommended.

### ⭐⭐⭐⭐⭐ Great for mailing 8x10 photos!
*by B***G on January 6, 2016*

These are great for mailing out 8x10 photos, discs or even small packages. We put them in poly bags and on occasion will stick a cardboard piece in the mailer just for added support but it already feels very firm.  They feel like it would take quite a bit of beating or deliberate bending for it to get ruined. I never really tried though :)I've been using these mailers for about 7 years now and will probably never use anything but these.

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**Shop now:** [https://www.desertcart.co.za/products/87413035-pratt-mj-3-self-seal-stay-flat-mailer-white-9](https://www.desertcart.co.za/products/87413035-pratt-mj-3-self-seal-stay-flat-mailer-white-9)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-21*