---
product_id: 640179911
title: "300 Pack 3.5 x 4.5 Inch Corrugated Cardboard Sheets, 2mm Thick Brown Cardboard Inserts for Packaging, Flat Cardboard Sheets Corrugated Pads for Shipping, Mailing, Crafts"
brand: "muklei"
price: "€ 75.79"
currency: EUR
in_stock: true
reviews_count: 7
category: "Muklei"
url: https://www.desertcart.gr/products/640179911-300-pack-3-5-x-4-5-inch-corrugated-cardboard
store_origin: GR
region: Greece
---

# 2mm thick for sturdy support 300 sheets for bulk packaging power Easy to cut & fold for versatile use 300 Pack 3.5 x 4.5 Inch Corrugated Cardboard Sheets, 2mm Thick Brown Cardboard Inserts for Packaging, Flat Cardboard Sheets Corrugated Pads for Shipping, Mailing, Crafts

**Brand:** muklei
**Price:** € 75.79
**Availability:** ✅ In Stock

## Summary

> 📦 Elevate your packaging game with bulk strength and precision!

## Quick Answers

- **What is this?** 300 Pack 3.5 x 4.5 Inch Corrugated Cardboard Sheets, 2mm Thick Brown Cardboard Inserts for Packaging, Flat Cardboard Sheets Corrugated Pads for Shipping, Mailing, Crafts by muklei
- **How much does it cost?** € 75.79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/640179911-300-pack-3-5-x-4-5-inch-corrugated-cardboard)

## Best For

- muklei enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Utility:** Perfect for packaging, mailing, DIY projects, and creative crafts—your all-in-one solution
- • **Reliable Protection:** High-quality corrugated material guards against bending and breakage during transit
- • **Bulk Packaging Mastery:** 300 durable sheets to power through all your shipping and crafting needs
- • **Precision Crafting Ready:** Flat, clean-cut sheets that fold and cut effortlessly for professional results
- • **Unmatched Structural Strength:** 2mm thickness ensures your items stay protected and pristine

## Overview

This 300-pack of 3.5 x 4.5 inch corrugated cardboard sheets offers 2mm thick, high-quality brown inserts designed for superior durability and protection. Ideal for shipping, mailing, and crafting, these flat sheets provide structural stability and easy customization, ensuring your items arrive safe and your projects look professional.

## Description

Product description

Review: Clean cuts - sharp corners - I use this product as a "backer" or support for collectible trading cards that I sell online. Well worth the investment to make sure my buyers get their product in top condition!
Review: It protects trading cards during shipping - Arrived and item is as described

## Features

- HIGH QUALITY MATERIAL - Our corrugated cardboard sheets are made from high quality corrugated raw material that is strong and durable and does not warp or break easily, ensuring safe and reliable use for a long time to come.
- EFFECTIVE PROTECTION - This set of 300 sheets of corrugated pads can be used to reinforce and support the packaging of goods, providing effective protection for important documents during transportation and mailing, avoiding the breakage or bending of goods and documents during transportation.
- STRUCTURAL STABILITY - The thickness of these flat cardboard sheets ranges from 1.6-2mm, providing enough structural strength to make them suitable for a wide range of crafting and packaging applications. This thickness ensures rigidity and enables easy cutting and folding.
- WIDE APPLICATION - These brown cardboards are great for crafts, DIY projects, school projects and packaging needs. Whether you are doing a creative craft project or need packaging, these corrugated cardboards will be a great help.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CQ1MCW9G |
| Best Sellers Rank | #152,734 in Office Products ( See Top 100 in Office Products ) #940 in Box Mailers |
| Brand | MUKLEI |
| Brand Name | MUKLEI |
| Color | Brown |
| Customer Reviews | 4.4 out of 5 stars 14 Reviews |
| Item Dimensions L x W | 4.5"L x 3.5"W |
| Item Weight | 1.52 Kilograms |
| Manufacturer | MUKLEI |
| Material | Cardboard |
| Material Type | Cardboard |
| Number of Items | 300 |
| Product Dimensions | 4.5"L x 3.5"W |
| UPC | 767950944661 |
| Unit Count | 300.0 Count |

## Product Details

- **Brand:** MUKLEI
- **Color:** Brown
- **Item Weight:** 1.52 Kilograms
- **Material:** Cardboard
- **Product Dimensions:** 4.5"L x 3.5"W

## Images

![300 Pack 3.5 x 4.5 Inch Corrugated Cardboard Sheets, 2mm Thick Brown Cardboard Inserts for Packaging, Flat Cardboard Sheets Corrugated Pads for Shipping, Mailing, Crafts - Image 1](https://m.media-amazon.com/images/I/91UjUoaOrxL.jpg)
![300 Pack 3.5 x 4.5 Inch Corrugated Cardboard Sheets, 2mm Thick Brown Cardboard Inserts for Packaging, Flat Cardboard Sheets Corrugated Pads for Shipping, Mailing, Crafts - Image 2](https://m.media-amazon.com/images/I/61tBlDP1EVL.jpg)
![300 Pack 3.5 x 4.5 Inch Corrugated Cardboard Sheets, 2mm Thick Brown Cardboard Inserts for Packaging, Flat Cardboard Sheets Corrugated Pads for Shipping, Mailing, Crafts - Image 3](https://m.media-amazon.com/images/I/812ARAUpyyL.jpg)
![300 Pack 3.5 x 4.5 Inch Corrugated Cardboard Sheets, 2mm Thick Brown Cardboard Inserts for Packaging, Flat Cardboard Sheets Corrugated Pads for Shipping, Mailing, Crafts - Image 4](https://m.media-amazon.com/images/I/61HOTdv29ML.jpg)
![300 Pack 3.5 x 4.5 Inch Corrugated Cardboard Sheets, 2mm Thick Brown Cardboard Inserts for Packaging, Flat Cardboard Sheets Corrugated Pads for Shipping, Mailing, Crafts - Image 5](https://m.media-amazon.com/images/I/715sWrJa4iL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Clean cuts - sharp corners
*by M***X on January 12, 2025*

I use this product as a "backer" or support for collectible trading cards that I sell online. Well worth the investment to make sure my buyers get their product in top condition!

### ⭐⭐⭐⭐⭐ It protects trading cards during shipping
*by M***A on March 17, 2025*

Arrived and item is as described

### ⭐⭐⭐⭐ Best option for my project
*by D***L on September 2, 2025*

Best option for my small projects

## Frequently Bought Together

- MUKLEI 300 Pack 3.5 x 4.5 Inch Corrugated Cardboard Sheets, 2mm Thick Brown Cardboard Inserts for Packaging, Flat Cardboard Sheets Corrugated Pads for Shipping, Mailing, Crafts
- Fainne 350 Pieces 6x8 Inches Rigid Self Adhesive White Photo Mailers 350GSM Document Thicken Keep Flat Cardboard Mailers Shipping Envelopes Photography for Photos, Documents, CD

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-06-29*