---
product_id: 238108821
title: "WENCHENG 20 Pack A3 Foam Board Polystyrene Foam Sheets 5mm Hard Paper Outer Foam Boards Photo Mount Board Wedding Signs - 297 × 420mm(11 x 16.5 inch), Black"
brand: "younthye"
price: "1030 kr"
currency: ISK
in_stock: false
reviews_count: 1
url: https://www.desertcart.is/products/238108821-wencheng-20-pack-a3-foam-board-polystyrene-foam-sheets-5mm
store_origin: IS
region: Iceland
---

# 297x420mm size 5mm thick Easily cuttable WENCHENG 20 Pack A3 Foam Board Polystyrene Foam Sheets 5mm Hard Paper Outer Foam Boards Photo Mount Board Wedding Signs - 297 × 420mm(11 x 16.5 inch), Black

**Brand:** younthye
**Price:** 1030 kr
**Availability:** ❌ Out of Stock

## Summary

> 🖌️ Unleash Your Creativity with Every Cut!

## Quick Answers

- **What is this?** WENCHENG 20 Pack A3 Foam Board Polystyrene Foam Sheets 5mm Hard Paper Outer Foam Boards Photo Mount Board Wedding Signs - 297 × 420mm(11 x 16.5 inch), Black by younthye
- **How much does it cost?** 1030 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/238108821-wencheng-20-pack-a3-foam-board-polystyrene-foam-sheets-5mm)

## Best For

- younthye enthusiasts

## Why This Product

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

## Key Features

- • **Craft Your Vision:** Transform ideas into reality with precision!
- • **Acid-Free Protection:** Keep your creations vibrant and long-lasting.
- • **Durable & Lightweight:** Perfect for all your creative projects.
- • **Versatile Applications:** From wedding signs to school projects, the possibilities are endless!
- • **Customer-Centric Guarantee:** Shop with confidence—your satisfaction is our priority!

## Overview

The WENCHENG 20 Pack A3 Foam Board features 20 sheets of 5mm thick polystyrene foam, ideal for a variety of creative projects. Each sheet measures 297 x 420mm and is designed with acid-free UV protected paper, ensuring durability and vibrant results. Perfect for crafting, sign making, and more, this foam board is lightweight yet sturdy, making it easy to cut and shape. Plus, enjoy peace of mind with a 30-day money-back guarantee and lifetime support.

## Description



## Features

- Make sure this fits by entering your model number.
- 20PCS A3 FOAM BOARD - Black 5mm thick A3 foam sheets are made of polystyrene core sandwiched between two layers of bleached with ACID FREE UV protected paper coating.
- HIGH EFFICIENTLY : Lightweight and durable memory retention foam core which can be easily cut into shapes with a craft knife or stanley knife without leaving jagged edges, ideal for home, craft and office needs.
- IDEAL SIZE FOR YOUR CRAFT: 297mm x 420mm (W x L), 5mm Thickness; Do not occupy your space or lightening your energy.
- MULTI USAGE FOAM BOARD -Lightweight and durable foam sheet can be easily cut into shapes, perfect for sign making, photography backgrounds, mounting photos, model making, display board, school projects, displaying photographs and posters, wedding moon boards.
- CUSTOMER GUARANTEE - Ready to respond within a 24 hour time frame; 30-day money back guarantee, 180-day replacement warranty and lifetime support guarantee.

## Images

![WENCHENG 20 Pack A3 Foam Board Polystyrene Foam Sheets 5mm Hard Paper Outer Foam Boards Photo Mount Board Wedding Signs - 297 × 420mm(11 x 16.5 inch), Black - Image 1](https://m.media-amazon.com/images/I/51VbdF0315L.jpg)
![WENCHENG 20 Pack A3 Foam Board Polystyrene Foam Sheets 5mm Hard Paper Outer Foam Boards Photo Mount Board Wedding Signs - 297 × 420mm(11 x 16.5 inch), Black - Image 2](https://m.media-amazon.com/images/I/71E4QNii-lL.jpg)
![WENCHENG 20 Pack A3 Foam Board Polystyrene Foam Sheets 5mm Hard Paper Outer Foam Boards Photo Mount Board Wedding Signs - 297 × 420mm(11 x 16.5 inch), Black - Image 3](https://m.media-amazon.com/images/I/71eK51WRHkL.jpg)
![WENCHENG 20 Pack A3 Foam Board Polystyrene Foam Sheets 5mm Hard Paper Outer Foam Boards Photo Mount Board Wedding Signs - 297 × 420mm(11 x 16.5 inch), Black - Image 4](https://m.media-amazon.com/images/I/81n9Ldh3PLL.jpg)
![WENCHENG 20 Pack A3 Foam Board Polystyrene Foam Sheets 5mm Hard Paper Outer Foam Boards Photo Mount Board Wedding Signs - 297 × 420mm(11 x 16.5 inch), Black - Image 5](https://m.media-amazon.com/images/I/71n1rSty+yS.jpg)

## Customer Reviews

### ⭐ 







  
  
    Black residue
  

*by J***E on Reviewed in the United States on December 6, 2021*

For some reason this Foam boy leave a black residue on your hands and projects

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**Shop now:** [https://www.desertcart.is/products/238108821-wencheng-20-pack-a3-foam-board-polystyrene-foam-sheets-5mm](https://www.desertcart.is/products/238108821-wencheng-20-pack-a3-foam-board-polystyrene-foam-sheets-5mm)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-22*