---
product_id: 546903871
title: "12x9x4 Black Shipping Boxes 20 Pack, Large Cardboard Mailer Boxes for Small Business Shipping Packaging"
brand: "rempry"
price: "¥28578"
currency: JPY
in_stock: true
category: "Rempry"
url: https://www.desertcart.jp/products/546903871-12x9x4-black-shipping-boxes-20-pack-large-cardboard-mailer-boxes
store_origin: JP
region: Japan
---

# 12x9x4 inch large size Double-sided black print, scratch-resistant 32 ECT crush-resistant corrugated cardboard 12x9x4 Black Shipping Boxes 20 Pack, Large Cardboard Mailer Boxes for Small Business Shipping Packaging

**Brand:** rempry
**Price:** ¥28578
**Availability:** ✅ In Stock

## Summary

> 📦 Elevate your shipping game with style and strength!

## Quick Answers

- **What is this?** 12x9x4 Black Shipping Boxes 20 Pack, Large Cardboard Mailer Boxes for Small Business Shipping Packaging by rempry
- **How much does it cost?** ¥28578 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/546903871-12x9x4-black-shipping-boxes-20-pack-large-cardboard-mailer-boxes)

## Best For

- rempry enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Assembly:** Folds in seconds—no tape, glue, or staples needed for instant shipping prep.
- • **Premium Protective Build:** 32 ECT grade cardboard ensures your products arrive flawless and secure.
- • **Eco-Friendly & Recyclable:** Sustain your brand’s green values with fully recyclable materials.
- • **Sleek & Scratch-Resistant:** Double-sided black finish keeps your packaging looking sharp and professional.
- • **Perfectly Sized for Small Business:** Generous 12x9x4 inch dimensions fit a wide range of products and shipping labels.

## Overview

Rempry’s 20-pack of 12x9x4 inch black shipping boxes combines durability with sleek design, featuring crush-resistant 32 ECT corrugated cardboard and a scratch-resistant double-sided black finish. These easy-to-assemble mailers are perfect for small businesses seeking professional, eco-friendly packaging that protects and impresses.

## Description

Buy Rempry 12x9x4 Black Shipping Boxes 20 Pack, Large Cardboard Mailer Boxes for Small Business Shipping Packaging: Box Mailers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Practical Appearance: The large shipping boxes are finished with Double-sided black printing which makes the boxes more attractive, and black color are not easy to show scratches.
- Dimension: The cardboard boxes' outside size is 12x9x4 inches (LxWxH), inner size is 11.6x8.9x3.9 inches. Package includes 20 PCS large mailing boxes.
- Easy To Assemble: The shipping mailers boxes fold in seconds without any tape, glue, or staples.
- Crush Resistant: 32 ECT grade, made of enduring corrugated cardboard, the standard 90° angles will protect your items in good condition while delivery.
- Wide Usage: The black mailers boxes are perfect for small businesses, packaging, mailing shipping, and gift giving small items. Also, these shipping boxes are RECYCLABLE.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BV9MW6JX |
| Best Sellers Rank | #5,994 in Office Products ( See Top 100 in Office Products ) #59 in Box Mailers |
| Brand | Rempry |
| Brand Name | Rempry |
| Breaking Strength | 3 kg |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 1,288 Reviews |
| Item Dimensions L x W x H | 12"L x 9"W x 4"H |
| Item Weight | 4.4 kg |
| Manufacturer | Rempry |
| Material | Cardboard |
| Material Type | Cardboard |
| Number of Boxes | 20 |
| Product Dimensions | 12"L x 9"W x 4"H |
| Unit Count | 20 Count |

## Product Details

- **Brand:** Rempry
- **Color:** Black
- **Material:** Cardboard
- **Product Dimensions:** 12"L x 9"W x 4"H
- **Item Weight:** 4.4 Kilograms

## Images

![12x9x4 Black Shipping Boxes 20 Pack, Large Cardboard Mailer Boxes for Small Business Shipping Packaging - Image 1](https://m.media-amazon.com/images/I/61OnQm1-rUL.jpg)

## Available Options

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

## Questions & Answers

**Q: Could a dozen strawberries fit in this?**
A: Depends on the size of the berries. Jumbo...no. Medium/large size, most likely.

**Q: how to tape box for shipping**
A: Hello, the shipping mailers boxes fold in seconds without any tape, glue, or staples.

**Q: Is this matte or glossy?**
A: Hi, our shipping boxes look black on both sides for elegance, the inside is matte, the outsied is glossy.

**Q: Will a regular size copy paper, 11 x 8.5 fit in the box without bending?**
A: No, it’s too small.

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**Shop now:** [https://www.desertcart.jp/products/546903871-12x9x4-black-shipping-boxes-20-pack-large-cardboard-mailer-boxes](https://www.desertcart.jp/products/546903871-12x9x4-black-shipping-boxes-20-pack-large-cardboard-mailer-boxes)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-11-10*