---
product_id: 469974677
title: "Postmaster Padded Envelopes A4 Gold Peel Seal Bubble Mailers 220x340mm, 10 Pack"
brand: "postmaster"
price: "KD 5.25"
currency: KWD
in_stock: true
reviews_count: 10
category: "Postmaster"
url: https://www.desertcart.com.kw/products/469974677-postmaster-padded-envelopes-a4-gold-peel-seal-bubble-mailers-220x340mm
store_origin: KW
region: Kuwait
---

# FSC certified sustainable paper Perfect A4 size 220x340mm Secure peel & seal closure Postmaster Padded Envelopes A4 Gold Peel Seal Bubble Mailers 220x340mm, 10 Pack

**Brand:** postmaster
**Price:** KD 5.25
**Availability:** ✅ In Stock

## Summary

> 📦 Elevate your shipping game with style, security, and sustainability!

## Quick Answers

- **What is this?** Postmaster Padded Envelopes A4 Gold Peel Seal Bubble Mailers 220x340mm, 10 Pack by postmaster
- **How much does it cost?** KD 5.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/469974677-postmaster-padded-envelopes-a4-gold-peel-seal-bubble-mailers-220x340mm)

## Best For

- postmaster enthusiasts

## Why This Product

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

## Key Features

- • **Tailored for A4:** Precisely sized at 220x340mm, ideal for documents, jewelry, cosmetics, and tech gadgets.
- • **Eco-Chic Packaging:** Made from FSC-certified paper, combining premium protection with responsible sustainability.
- • **Effortless Security:** Peel & seal closure locks your shipments tight, ensuring tamper-proof delivery every time.
- • **Trusted UK Craftsmanship:** Manufactured by Postmaster, trusted by top UK businesses and thriving e-commerce sellers alike.
- • **Lightweight & Cost-Effective:** Send with just one large letter stamp (up to 100g), saving on postage without compromising protection.

## Overview

This 10-pack of A4 Gold Padded Bubble Envelope Mailers by Postmaster offers robust protection for fragile items with a secure peel-and-seal closure. Sized perfectly at 220x340mm, these lightweight envelopes can be sent with a single large letter stamp, making them cost-efficient. Crafted from FSC-certified sustainable paper and manufactured in the UK, they combine eco-consciousness with trusted quality, ideal for professional e-commerce sellers and businesses seeking reliable, stylish packaging.

## Description

Postmaster Padded Envelopes A4 Gold Peel Seal Bubble Mailers 220x340mm, 10 Pack : desertcart.co.uk: Stationery & Office Supplies

Review: Does exactly what it says, strong and reliable - These board back envelopes are exactly what you want if you need to post documents safely. They are sturdy, keep contents flat, and do a good job of preventing bends during transit. The board backing is strong enough to protect papers without being overly thick or bulky. They are easy to seal, the sizing is accurate, and they feel well made overall. I have used them for posting important documents and they have arrived in good condition. If you need reliable envelopes that do what they are meant to do, these are a solid choice. Great value and no complaints.
Review: Send items with ease of mind - I’ve been using C5 cardboard envelopes for a few months now, and they’ve quickly become my go-to choice for mailing documents, photos, and small prints. The quality is outstanding — the cardboard is sturdy and gives a reassuring level of protection during transit. I’ve never had issues with bending or creasing, even when sending more delicate items. The size is just right for A5 documents or folded A4 sheets, making them super versatile for both personal and professional use. The self-seal adhesive strip is strong and secure, saving me time and hassle. Overall, these envelopes are reliable, professional-looking, and worth every penny. Highly recommended for anyone who wants peace of mind when sending important items

## Features

- PROTECTS – Our Bubble Mailers are designed to protect fragile contents such as Jewellery, Cosmetics and Phones. Ideal for Online businesses, eBay sellers, Etzy vendors & Ecommerce companies who want to give their customers a fantastic buying experience.
- FAST – Our Kraft bags have PEEL and SEAL closing, so you can quickly and securely prepare shipments so that they can’t be opened until the packaging arrives.
- SEND WITH 1 x STAMP - this Envelope is lightweight & measures 220 x 340mm (perfect for A4 sized contents), and as long as the thickness doesn’t exceed 25mm you can send this Bubble Mailer with a single Large Letter 1st or 2nd Class stamp (max 100g)
- FSC CERTIFIED FOR SUSTAINABILITY – FSC stands for the Forest Stewardship Council, and is an international organisation dedicated to promoting responsible management of the world’s forests. These padded envelopes are made from Paper that has been certified by the FSC as sustainable.
- MADE IN THE UK BY Postmaster - we manufacture millions of Envelopes for some of Britain's biggest Organisations as well as for thousands of small, home based businesses

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B918KR95 |
| Best Sellers Rank | 623 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 16 in Padded Envelope Mailers |
| Brand | Postmaster |
| Closure | Self-Seal |
| Colour | Padded A4 |
| Customer Reviews | 4.6 4.6 out of 5 stars (887) |
| Date First Available | 8 Aug. 2022 |
| Item Weight | 230 g |
| Manufacturer | Bong |
| Manufacturer Part Number | RBL10619 |
| Material Type | Paper |
| Model Number | RBL10619 |
| Number of Items | 10 |
| Paper Finish | Matte |
| Product Dimensions | 22 x 34 x 0.3 cm; 230 g |
| Shape | Rectangular |
| Sheet Size | 220 x 340 |
| Size | A4 |

## Product Details

- **Brand:** Postmaster
- **Closure type:** Self-Seal
- **Colour:** Padded A4
- **Material:** Paper
- **Occasion:** Business, Formal

## Images

![Postmaster Padded Envelopes A4 Gold Peel Seal Bubble Mailers 220x340mm, 10 Pack - Image 1](https://m.media-amazon.com/images/I/61pAQM7NnKL.jpg)

## Available Options

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

## Questions & Answers

**Q: Do these fit through the post box?**
A: Yes they will easily fit through a post box I have mailed them.

**Q: Do these envelopes class as letter or large letter size for royal mail?**
A: The A4 sized envelopes are classed by Royal Mail as Large Letter.

**Q: what is the gsm of the cardboard envelope?**
A: I’d say 300gsm but they are not the strongest/ most rigid I’ve used

**Q: Hi, are the a5 cardboard backed envelopes the correct size for dvds, if the dvds are posted out with just their paper covers please? thank you.**
A: Yes I think they would be perfect, without the cases

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does exactly what it says, strong and reliable
*by D***B on 26 December 2025*

These board back envelopes are exactly what you want if you need to post documents safely. They are sturdy, keep contents flat, and do a good job of preventing bends during transit. The board backing is strong enough to protect papers without being overly thick or bulky. They are easy to seal, the sizing is accurate, and they feel well made overall. I have used them for posting important documents and they have arrived in good condition. If you need reliable envelopes that do what they are meant to do, these are a solid choice. Great value and no complaints.

### ⭐⭐⭐⭐⭐ Send items with ease of mind
*by C***E on 20 May 2025*

I’ve been using C5 cardboard envelopes for a few months now, and they’ve quickly become my go-to choice for mailing documents, photos, and small prints. The quality is outstanding — the cardboard is sturdy and gives a reassuring level of protection during transit. I’ve never had issues with bending or creasing, even when sending more delicate items. The size is just right for A5 documents or folded A4 sheets, making them super versatile for both personal and professional use. The self-seal adhesive strip is strong and secure, saving me time and hassle. Overall, these envelopes are reliable, professional-looking, and worth every penny. Highly recommended for anyone who wants peace of mind when sending important items

### ⭐⭐⭐⭐⭐ Good Quality and Value
*by E***3 on 9 January 2026*

Perfect size for "small letter" sized postage items (as long as the contents are light enough for the package to remain in that category). Sturdy, would recommend.

## Frequently Bought Together

- Postmaster Padded Envelopes A4 Gold Peel Seal Bubble Mailers 220x340mm, 10 Pack
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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-19*