--- 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: "฿2032" currency: THB in_stock: true reviews_count: 13 category: "Triplast" url: https://www.desertcart.co.th/products/49504123-triplast-c6-160-x-110-x-20-mm-white-pip store_origin: TH region: Thailand --- # 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:** ฿2032 **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?** ฿2032 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/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. Review: Great large letter boxes - Wonderful boxes, I thought they wheregoing to be too small but actually they are perfect, the design and quality are great and fit for purpose. Easy to assembly and they get the job done which is basically protect your products while they reach the final destination. For my products the sturdiness is absolutely fine, I don't need an iron carbox. They are mailbox large letter friendly. I'm happy with this purchase, I will definitely get more when I run out those ones. Review: Nice clean Box great for postage - SImple to build and looks nice. ## 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 | 1,410 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 23 in Box Mailers | | Brand | Triplast | | Colour | White | | Customer Reviews | 4.5 4.5 out of 5 stars (3,146) | | Date First Available | 23 Nov. 2016 | | Grade | 125 WK/T | | Item Weight | 25 g | | Manufacturer | Triplast | | Manufacturer Part Number | PIPC6 | | Material Type | Cardboard | | Model Number | PIPC6 | | Number of Items | 25 | | Product Dimensions | 11.5 x 18 x 2.1 cm; 24.95 g | | Size | Pack of 25 | | Strength | 125 Kilograms | ## 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 - **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) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great large letter boxes *by P***Z on 21 October 2025* Wonderful boxes, I thought they wheregoing to be too small but actually they are perfect, the design and quality are great and fit for purpose. Easy to assembly and they get the job done which is basically protect your products while they reach the final destination. For my products the sturdiness is absolutely fine, I don't need an iron carbox. They are mailbox large letter friendly. I'm happy with this purchase, I will definitely get more when I run out those ones. ### ⭐⭐⭐⭐⭐ Nice clean Box great for postage *by T***M on 11 November 2025* SImple to build and looks nice. ### ⭐⭐⭐⭐⭐ Good box for shipping small things in *by S***. on 7 December 2025* used for my small business to ship items in. Perfect size and really durable. Weight was fine and sealed really well with tape. Good design and nice value for money. --- ## 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.co.th/products/49504123-triplast-c6-160-x-110-x-20-mm-white-pip](https://www.desertcart.co.th/products/49504123-triplast-c6-160-x-110-x-20-mm-white-pip) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-25*