---
product_id: 655421557
title: "Triplast 457 x 324 mm A3 C3 Manilla Hard Board Backed Envelopes (Pack of 50)"
brand: "triplast"
price: "₨97718"
currency: LKR
in_stock: true
reviews_count: 5
category: "Triplast"
url: https://www.desertcart.lk/products/655421557-triplast-457-x-324-mm-a3-c3-manilla-hard-board
store_origin: LK
region: Sri Lanka
---

# 457 x 324 mm A3/C3 size Self-sealing peel & seal strip 115 micron rigid board backing Triplast 457 x 324 mm A3 C3 Manilla Hard Board Backed Envelopes (Pack of 50)

**Brand:** triplast
**Price:** ₨97718
**Availability:** ✅ In Stock

## Summary

> 📦 Seal your success with style and security!

## Quick Answers

- **What is this?** Triplast 457 x 324 mm A3 C3 Manilla Hard Board Backed Envelopes (Pack of 50) by triplast
- **How much does it cost?** ₨97718 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/655421557-triplast-457-x-324-mm-a3-c3-manilla-hard-board)

## 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

- • **Bulk Value Pack:** 50 envelopes per pack—ideal for busy managers who send important documents regularly.
- • **Perfect A3/C3 Fit:** Generous 457 x 324 mm size designed to accommodate larger documents without folding.
- • **Effortless Security:** Peel & seal strip ensures a quick, tamper-evident closure for peace of mind.
- • **Professional Presentation:** Classic manilla brown with 'Please Do Not Bend' print signals care and professionalism.
- • **Ultimate Document Protection:** Rigid 115 micron board backing keeps your important papers crease-free and pristine.

## Overview

Triplast A3 C3 Manilla Hard Board Backed Envelopes (Pack of 50) combine robust 115 micron rigid backing with a self-sealing peel strip to protect and secure your documents. Sized at 457 x 324 mm, these envelopes prevent bending and creasing, making them perfect for professional mailings. The classic manilla color and 'Please Do Not Bend' print add a polished, trustworthy touch to every shipment.

## Description

These board back envelopes are ideal for sending doents in the post or via courier, and ensure they do not bend or get creased during transit. Items placed inside the envelopes are not visible through the material. All our board back envelopes have easy to peel & seal flaps and are printed with 'Please Do Not Bend' on them.

Review: Están muy bien para entrega de fotogorafías ya que la base de cartón no permite que se doblen los documentos
Review: Good quality & value. Adhesive sticks well. Board is sufficiently rigid to offer protection to items.

## Features

- A3 / C3 Size 457 x 324 mm + Lip to seal
- Manilla brown colour, solid back 115 microns thick
- Triplast branded, self sealing peel and seal strip
- Number of items: 50.0

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01H01UHW2 |
| Best Sellers Rank | #78,043 in Office Products ( See Top 100 in Office Products ) #994 in Mailing Envelopes |
| Brand | Triplast |
| Closure | Self-Seal |
| Color | Brown |
| Customer Reviews | 4.6 4.6 out of 5 stars (924) |
| Date First Available | 12 April 2017 |
| Item Weight | 114 g |
| Manufacturer | Triplast |
| Manufacturer Part Number | A3 C3 |
| Material Type | Paper |
| Model number | A3 C3 |
| Number of Items | 50 |
| Paper Finish | Uncoated |
| Product Dimensions | 32.4 x 45.7 x 0.2 cm; 113.85 g |
| Shape | Rectangular |
| Size | Pack of 50 |

## Product Details

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

## Images

![Triplast 457 x 324 mm A3 C3 Manilla Hard Board Backed Envelopes (Pack of 50) - Image 1](https://m.media-amazon.com/images/I/61KEjAvFn0L.jpg)
![Triplast 457 x 324 mm A3 C3 Manilla Hard Board Backed Envelopes (Pack of 50) - Image 2](https://m.media-amazon.com/images/I/71EPCxBtg0L.jpg)
![Triplast 457 x 324 mm A3 C3 Manilla Hard Board Backed Envelopes (Pack of 50) - Image 3](https://m.media-amazon.com/images/I/71NaFQ8VaqL.jpg)
![Triplast 457 x 324 mm A3 C3 Manilla Hard Board Backed Envelopes (Pack of 50) - Image 4](https://m.media-amazon.com/images/I/71XQNFaZ38L.jpg)
![Triplast 457 x 324 mm A3 C3 Manilla Hard Board Backed Envelopes (Pack of 50) - Image 5](https://m.media-amazon.com/images/I/81OOPE9wx2L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by I***A on 27 March 2018*

Están muy bien para entrega de fotogorafías ya que la base de cartón no permite que se doblen los documentos

### ⭐⭐⭐⭐⭐ Review
*by L***N on 18 April 2025*

Good quality & value. Adhesive sticks well. Board is sufficiently rigid to offer protection to items.

### ⭐⭐⭐⭐⭐ Review
*by P***E on 28 April 2019*

Excellent pour la protection et la remises de photos, sous passe-partout de 30 x 40 cm

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-16*