---
product_id: 49504123
title: "Triplast C6 160 x 110 x 20 mm White PIP Cardboard Large Letter Postal Box for Royal Mail (Pack of 25)"
brand: "triplast"
price: "S$26"
currency: SGD
in_stock: true
category: "Triplast"
url: https://www.desertcart.sg/products/49504123-triplast-c6-160-x-110-x-20-mm-white-pip
store_origin: SG
region: Singapore
---

# 160x110x20mm internal size 125 WK/T single wall strength Royal Mail Large Letter compliant Triplast C6 160 x 110 x 20 mm White PIP Cardboard Large Letter Postal Box for Royal Mail (Pack of 25)

**Brand:** triplast
**Price:** S$26
**Availability:** ✅ In Stock

## Summary

> ✉️ Ship Smart, Pack Sharp: The Ultimate Large Letter Solution

## Quick Answers

- **What is this?** Triplast C6 160 x 110 x 20 mm White PIP Cardboard Large Letter Postal Box for Royal Mail (Pack of 25) by triplast
- **How much does it cost?** S$26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/49504123-triplast-c6-160-x-110-x-20-mm-white-pip)

## 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

- • **Versatile Fit:** Ideal for phones, accessories, and small items—perfect for your e-commerce essentials
- • **Bulk Value Pack:** 25-pack ensures you’re always ready to ship with style and reliability
- • **Robust Protection:** Strong 125 WK/T single wall cardboard shields your products without bulk
- • **Effortless Assembly:** FEFCO 0427 fold-over design with secure ear lock lids for quick, no-fuss packing
- • **Postage-Smart Dimensions:** Precisely sized to meet Royal Mail Large Letter standards—save on shipping costs every time

## Overview

The Triplast C6 postal box is a premium, easy-to-assemble cardboard mailer designed to meet Royal Mail's Large Letter size classification. With internal dimensions of 160x110x20mm and a robust 125 WK/T single wall construction, it offers reliable protection for phones, accessories, and small items while optimizing postage costs. Sold in convenient packs of 25, it’s the go-to choice for professionals seeking efficient, cost-effective shipping solutions.

## Description

Great prices on your favourite Office brands plus free delivery and returns on eligible orders.

## Features

- Easy to assemble FEFCO 0427 box style with fold-over ends and secure ear lock lids
- Meets Royal Mail's 'Large Letter' size classification for reduced postage costs
- Internal dimensions (usable size): 160x110x20mm & external dimensions (shipping size): 166x114x22mm.
- Strong 125 WK/T single wall cardboard for reliable protection
- Ideal for phones, accessories, and small items

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MTRRMTH |
| Best Sellers Rank | 1,635 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 23 in Box Mailers |
| Brand | Triplast |
| Breaking Strength | 125 Kilograms |
| Colour | White |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,184) |
| Global Trade Identification Number | 05056025171244 |
| Included Components | White PIP Large Letter Boxes |
| Item Dimensions L x W x H | 16L x 11W x 2H centimetres |
| Item Type Name | Triplast C6 160 x 110 x 20 mm White PIP Cardboard Large Letter Postal Boxes for Royal Mail (Pack of 25) |
| Item Weight | 0.06 Pounds |
| Manufacturer | Triplast |
| Material | Cardboard |
| Unit Count | 25.0 count |

## Product Details

- **Brand:** Triplast
- **Breaking strength:** 125 Kilograms
- **Colour:** White
- **Global Trade Identification Number:** 05056025171244
- **Item weight:** 0.06 Pounds
- **Material:** Cardboard
- **Number of Boxes:** 1
- **Product dimensions:** 16L x 11W x 2H centimetres
- **Unit count:** 25.0 count
- **Weight limit:** 125 Kilograms

## Images

![Triplast C6 160 x 110 x 20 mm White PIP Cardboard Large Letter Postal Box for Royal Mail (Pack of 25) - Image 1](https://m.media-amazon.com/images/I/51A9+130rdL.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.sg/products/49504123-triplast-c6-160-x-110-x-20-mm-white-pip](https://www.desertcart.sg/products/49504123-triplast-c6-160-x-110-x-20-mm-white-pip)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-09-02*