---
product_id: 66150851
title: "EcoSwift 7 Inch by 9 Inch Self Seal Keep Flat Durable Lightweight Rigid Cardboard Photo Mailer Envelopes Bundle for Mailing, White (500 Pack)"
brand: "ecoswift"
price: "702 zł"
currency: PLN
in_stock: true
reviews_count: 4
url: https://www.desertcart.pl/products/66150851-ecoswift-7-inch-by-9-inch-self-seal-keep-flat
store_origin: PL
region: Poland
---

# EcoSwift 7 Inch by 9 Inch Self Seal Keep Flat Durable Lightweight Rigid Cardboard Photo Mailer Envelopes Bundle for Mailing, White (500 Pack)

**Brand:** ecoswift
**Price:** 702 zł
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** EcoSwift 7 Inch by 9 Inch Self Seal Keep Flat Durable Lightweight Rigid Cardboard Photo Mailer Envelopes Bundle for Mailing, White (500 Pack) by ecoswift
- **How much does it cost?** 702 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/66150851-ecoswift-7-inch-by-9-inch-self-seal-keep-flat)

## Best For

- ecoswift enthusiasts

## Why This Product

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

## Description

EcoSwift Flat Cardboard Mailers with self-sealing, peel and stick adhesive, keep contents secure. EcoSwift Cardboard Mailers are extremely durable and lightweight to help save money on postage and are constructed with strong seams. Surface easily accepts ink, stamps, and labels. Approved by shipping carriers.

## Features

- Dimensions: 7" x 9"
- Self-sealing, peel and stick adhesive keeps contents secure
- Lightweight cardboard construction helps save on postage
- Durable and rigid to provide bend resistance
- Quantity: 500

## Images

![EcoSwift 7 Inch by 9 Inch Self Seal Keep Flat Durable Lightweight Rigid Cardboard Photo Mailer Envelopes Bundle for Mailing, White (500 Pack) - Image 1](https://images-na.ssl-images-amazon.com/images/I/61C2A2Ar4GL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Not very rigid but good value
  

*by S***E on Reviewed in the United States on February 17, 2021*

They are top open, not side, which I was hoping for. Would not recommend if you’re looking for side open. Thickness is about the same as a usps flat rate envelope so not super sturdy but suits my needs. They do not have an opening strip so that’s a bit disappointing but not a deal breaker. I had no problems with the adhesive but have only used 20 or so thus far. Overall for my application I found them to be acceptable and a good value.

### ⭐⭐⭐⭐ 







  
  
    REVISED review and increased rating
  

*by D***. on Reviewed in the United States on October 8, 2016*

September 2016:  This product is not at all as described. The adhesive strip is barely tacky. When you remove the paper strip and close the mailer, it comes right back open--not happy to have to tape all 500 of these self-adhesive mailers! They are described as light-weight and that is true, but they have only half of the rigidity of the mailers we are used to getting from Royal Mailers. Can not recommend this product at all. 2 STARSMay 2017: I am adding to my prior review and increasing my rating of this product. My prior post about the dried out adhesive is true and these mailers must be taped (disappointing) the mailers ended up being surprisingly useful. The 5x7 size is great for our shipments of items NOT requiring a heavier mailer.

### ⭐ 







  
  
    False advertisement. Opens on short side & flimsy
  

*by T***O on Reviewed in the United States on May 16, 2019*

I paid extra money to get envelopes which opened on the long horizontal side. Only for them to arrive opening on the short vertical side. AND they're flimsy to boot! Very aggravating. Now I have to lug around 500 envelopes to return? Smdh

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**Shop now:** [https://www.desertcart.pl/products/66150851-ecoswift-7-inch-by-9-inch-self-seal-keep-flat](https://www.desertcart.pl/products/66150851-ecoswift-7-inch-by-9-inch-self-seal-keep-flat)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-24*