---
product_id: 61650536
title: "Triplast 10 x A4 C4 Manilla Hard Board Back Envelopes (324x229mm) - Cardboard Backed Mailers with Peel & Seal Strip - Rigid Do Not Bend Envelopes for Mailing Posting Shipping & Storing Documents"
brand: "triplast"
price: "$U1712"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/61650536-triplast-10-x-a4-c4-manilla-hard-board-back-envelopes
store_origin: UY
region: Uruguay
---

# Perfect A4 fit, no folding needed Peel & seal strip for secure closure 120gsm kraft + 1000 micron rigid backing Triplast 10 x A4 C4 Manilla Hard Board Back Envelopes (324x229mm) - Cardboard Backed Mailers with Peel & Seal Strip - Rigid Do Not Bend Envelopes for Mailing Posting Shipping & Storing Documents

**Brand:** triplast
**Price:** $U1712
**Availability:** ✅ In Stock

## Summary

> 📬 Mail like a pro—protect, seal, and impress every time!

## Quick Answers

- **What is this?** Triplast 10 x A4 C4 Manilla Hard Board Back Envelopes (324x229mm) - Cardboard Backed Mailers with Peel & Seal Strip - Rigid Do Not Bend Envelopes for Mailing Posting Shipping & Storing Documents by triplast
- **How much does it cost?** $U1712 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/61650536-triplast-10-x-a4-c4-manilla-hard-board-back-envelopes)

## Best For

- triplast enthusiasts

## Why This Product

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

## Key Features

- • **Seal in seconds:** Built-in peel & seal strip ensures quick, secure, and tamper-proof packing
- • **Cost & waste savior:** Lightweight design reduces postage costs and eliminates extra labels
- • **Eco-smart packaging:** Made from 100% recycled, biodegradable materials for guilt-free mailing
- • **Flat & flawless delivery:** Rigid 1000 micron board backing keeps documents crease-free and pristine
- • **Bold 'Do Not Bend' warning:** Large red print deters careless handling, protecting your important documents

## Overview

Triplast's 10-pack of A4 C4 manilla hard board envelopes combines a sturdy 1000 micron rigid backing with a 120gsm kraft paper front, ensuring your documents stay flat and damage-free. Featuring a peel & seal strip for fast, secure closure, these eco-friendly envelopes are made from 100% recycled materials and are fully recyclable and biodegradable. Perfectly sized for unfolded A4 or folded A3 documents, they reduce postage costs and eliminate the need for extra labels, making them the smart, sustainable choice for professional mailing and storage.

## Description

Triplast 10 x A4 C4 Manilla Hard Board Back Envelopes (324x229mm) - Cardboard Backed Mailers with Peel & Seal Strip - Rigid Do Not Bend Envelopes for Mailing Posting Shipping & Storing Documents

## Features

- A MAILING ESSENTIAL: Pack of 10 x C4 rigid mailers designed to contain unfolded A4 paper (or A3 paper folded in half) - perfectly sized for posting & storing flat documents, certificates, magazines, reports, portfolios, contracts & photo prints
- WILL NOT BEND: 120gsm kraft paper front & 1000 micron board back construction offers all-round protection & rigidity to keep contents flat, crease-free & safe. "Please do not bend" is printed in large red font on the front to caution all handlers.
- QUICK, EASY & SECURE: Built-in peel & seal strip reduces packing time & cost by providing a strong & hassle-free seal while also offering extended shelf-life over self seal envelopes - just remove the strip & press the flap down to seal!
- SAVE ON PACKAGING & POSTAGE: A more cost-effective & waste-free alternative to all board envelopes, these light yet sturdy card backed envelopes are also cheaper to post. You may write on them directly to eliminate the need for extra address labels.
- AN ECO-CONSCIOUS CHOICE: Made from 100% recycled material, fully kerbside recyclable & biodegradable - these hard back envelopes are a plastic-free, sustainable & environmentally conscious packaging choice for office, school & home use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Triplast |
| Brand | Triplast |
| Model Number | A4 C4 |
| Product Dimensions | 22.9 x 32.4 x 0.2 cm; 55.79 g |
| Colour | Brown |
| Closure | Self-Seal |
| Shape | Rectangular |
| Material Type | Paper |
| Number of Items | 10 |
| Size | A4 C4 (324 x 229mm) |
| Sheet Size | A4 |
| Paper Finish | Uncoated |
| Manufacturer Part Number | A4 C4 |
| Item Weight | 55.8 g |

## Product Details

- **Brand:** Triplast
- **Colour:** Brown
- **Closure type:** Self-Seal
- **Occasion:** Everyday Mailing
- **Material:** Paper

## Images

![Triplast 10 x A4 C4 Manilla Hard Board Back Envelopes (324x229mm) - Cardboard Backed Mailers with Peel & Seal Strip - Rigid Do Not Bend Envelopes for Mailing Posting Shipping & Storing Documents - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## Available Options

This product comes in different **Number Of Items** options.

## Frequently Bought Together

- Triplast 10 x A4 C4 Manilla Hard Board Back Envelopes (324x229mm) - Cardboard Backed Envelopes with Peel & Seal Strip - Rigid Do Not Bend Envelopes for Mailing Posting Shipping & Storing Documents
- Amazon Basics Multipurpose Copy Printer Paper, 8.5" x 11", 20 lb, 10 Reams, 5000 Sheets, 92 Bright, White
- Hammermill Printer Paper, 20 lb Copy Paper, 8.5 x 14 - 10 Ream (5,000 Sheets) - 92 Bright, Made in the USA, 105015C

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.uy/products/61650536-triplast-10-x-a4-c4-manilla-hard-board-back-envelopes](https://www.desertcart.uy/products/61650536-triplast-10-x-a4-c4-manilla-hard-board-back-envelopes)

---

*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-04*