---
product_id: 197523787
title: "UCGOU Poly Mailers 19x24 Inch Black 50 Pack Extra Large Shipping Bags Strong Thick Mailing Envelopes Self Seal Adhesive Waterproof and Tear Proof Boutique Postal for Clothing Quilt and More"
brand: "ucgou"
price: "R857"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Ucgou"
url: https://www.desertcart.co.za/products/197523787-ucgou-poly-mailers-19x24-inch-black-50-pack-extra-large
store_origin: ZA
region: South Africa
---

# 19x24 inch extra-large size Strong self-seal adhesive Waterproof & tear-proof durability UCGOU Poly Mailers 19x24 Inch Black 50 Pack Extra Large Shipping Bags Strong Thick Mailing Envelopes Self Seal Adhesive Waterproof and Tear Proof Boutique Postal for Clothing Quilt and More

**Brand:** ucgou
**Price:** R857
**Availability:** ✅ In Stock

## Summary

> 📦 Ship Bold, Seal Strong, Stand Apart!

## Quick Answers

- **What is this?** UCGOU Poly Mailers 19x24 Inch Black 50 Pack Extra Large Shipping Bags Strong Thick Mailing Envelopes Self Seal Adhesive Waterproof and Tear Proof Boutique Postal for Clothing Quilt and More by ucgou
- **How much does it cost?** R857 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/197523787-ucgou-poly-mailers-19x24-inch-black-50-pack-extra-large)

## Best For

- ucgou enthusiasts

## Why This Product

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

## Key Features

- • **Boost Brand Credibility:** Premium look and feel that impresses customers and enhances your boutique business vibe.
- • **All-Weather Seal Security:** Four-season adhesive ensures your shipments stay sealed tight rain or shine—no compromises.
- • **Stand Out with Sleek Black:** Elevate your brand with bold, opaque black mailers that protect privacy and catch eyes.
- • **Built to Brave the Elements:** Thick polyethylene construction resists punctures, tears, and water for worry-free delivery.
- • **Time-Saving, No-Fuss Packaging:** Self-seal design means no extra tape needed—boost your packing speed and productivity.

## Overview

UCGOU Poly Mailers 19x24 inch 50-pack are extra-large, black, waterproof, and tear-resistant shipping bags featuring a strong, four-season self-seal adhesive. Designed for professional sellers, these durable mailers protect privacy and goods while enhancing brand presence with their sleek, opaque design.

## Description

Buy UCGOU Poly Mailers 19x24 Inch Black 50 Pack Extra Large Shipping Bags Strong Thick Mailing Envelopes Self Seal Adhesive Waterproof and Tear Proof Boutique Postal for Clothing Quilt and More: Bulk Envelope Mailers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Sturdy Poly Mailer Bags - Great mailer bags and quality. My 2nd time purchasing these, but this time in black because they were on sale for a reasonable price and had prime shipping, I was disappointed the blue ones were not; didn't make sense. Thickness is pretty good, they're not see through so couldn't see what you're shipping. Adhesive seal is good, but I always go back and tape over seal for extra caution. These are easy to use, flexible, and functional. Love the size of these as well.
Review: Great choice! - I am a repeat customer for these poly bags because they are very strong and the perfect size to ship many of my eBay sales. I love the beautiful, cheerful color!

## Features

- Eye Catching Poly Mailers: The size of the bags is 19x24 inches. The black is an attractive color that makes your products stand out of standard white poly mailers. With gray inner lining, these poly mailers are opaque. Used tear resistant material, UCGOU poly mailers can not only protect your privacy well during transportation, but also keep your goods arriving safely
- Strong Self Sealing Adhesive: Our mailing envelopes is using four season adhesive, which can maintain strong stickiness throughout the year, even if the weather is very hot or cold. The strong stickiness prevents your items from being secretly replaced during transportation. The adhesive is covered with silver strip, which are easily peel off the strip and seal the bag
- Sturdy and Durable Construction: The thicken shipping bags covers with polyethylene material, making them not easily punctured and damaged. Beside, the shipping bags features with excellent waterproof and tearing proof effects because of the reinforce sealing on the edge. They can keep your value stuff safely to destination even though using on foggy or rainy days
- Convenient and Easy to Use: These poly shipping bags are the perfect choice for small and middle business for easily using with not require extra packaging material, which can improve your company productivity at work, save much time. It is very suitable to transport for hoodies, sweatshirt, clothes, quilt and more
- Enhance Brand Influence: Bright colors bring a lively atmosphere, which makes the items you transport more conspicuous and will not be easily lost. Beautiful colors can also make your customers happy and enhance your brand influence. We have been committed to making better products to serve our customers, so that their business can get better and better

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B085DZ8GCP |
| Additional Features | Waterproof |
| Best Sellers Rank | #1,345 in Office Products ( See Top 100 in Office Products ) #13 in Envelope Mailers |
| Brand | UCGOU |
| Brand Name | UCGOU |
| Closure Type | Self-Seal |
| Color | Black |
| Customer Reviews | 4.8 out of 5 stars 20,697 Reviews |
| Item Dimensions L x W | 24"L x 19"W |
| Item Height | 0.01 inches |
| Item Shape | Rectangular |
| Manufacturer | UCGOU |
| Material | Plastic |
| Material Type | Plastic |
| Number of Items | 50 |
| Occasion Type | Graduation |
| Recommended Uses For Product | Invitation Card, Letter |
| Size | 19x24" 50PC |
| Special Feature | Waterproof |
| Style | Poly |
| Unit Count | 50.00 Count |

## Product Details

- **Brand:** UCGOU
- **Color:** Black
- **Closure Type:** Self-Seal
- **Material:** Plastic
- **Number of Items:** 50

## Images

![UCGOU Poly Mailers 19x24 Inch Black 50 Pack Extra Large Shipping Bags Strong Thick Mailing Envelopes Self Seal Adhesive Waterproof and Tear Proof Boutique Postal for Clothing Quilt and More - Image 1](https://m.media-amazon.com/images/I/416tXiUTaKL.jpg)
![UCGOU Poly Mailers 19x24 Inch Black 50 Pack Extra Large Shipping Bags Strong Thick Mailing Envelopes Self Seal Adhesive Waterproof and Tear Proof Boutique Postal for Clothing Quilt and More - Image 2](https://m.media-amazon.com/images/I/51FWnOn+GDL.jpg)
![UCGOU Poly Mailers 19x24 Inch Black 50 Pack Extra Large Shipping Bags Strong Thick Mailing Envelopes Self Seal Adhesive Waterproof and Tear Proof Boutique Postal for Clothing Quilt and More - Image 3](https://m.media-amazon.com/images/I/51TAPhLUryL.jpg)
![UCGOU Poly Mailers 19x24 Inch Black 50 Pack Extra Large Shipping Bags Strong Thick Mailing Envelopes Self Seal Adhesive Waterproof and Tear Proof Boutique Postal for Clothing Quilt and More - Image 4](https://m.media-amazon.com/images/I/61VaeXlZTkL.jpg)
![UCGOU Poly Mailers 19x24 Inch Black 50 Pack Extra Large Shipping Bags Strong Thick Mailing Envelopes Self Seal Adhesive Waterproof and Tear Proof Boutique Postal for Clothing Quilt and More - Image 5](https://m.media-amazon.com/images/I/61lg+BXP9hL.jpg)

## Available Options

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

## Questions & Answers

**Q: Would this be appropriate to ship straw beach bags? the largest bags i have are 22”x14”x 4” and the other 16”x12”x 8”?  please advise. need 50**
A: For sure the 16”x12”x 8" will fit without any problem, the 22”x14”x 4” bag may be a little tight but you may be able to fit it. You can always order this product and see if it works, if it doesn't just return them.

**Q: Are these mailers recyclable?  Do they have the recycle symbol on them?**
A: They do not.

**Q: What's the height of this bags?**
A: 24"

**Q: Is this large enough for large boot boxes?**
A: Yes they are.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sturdy Poly Mailer Bags
*by K***S on November 27, 2025*

Great mailer bags and quality. My 2nd time purchasing these, but this time in black because they were on sale for a reasonable price and had prime shipping, I was disappointed the blue ones were not; didn't make sense. Thickness is pretty good, they're not see through so couldn't see what you're shipping. Adhesive seal is good, but I always go back and tape over seal for extra caution. These are easy to use, flexible, and functional. Love the size of these as well.

### ⭐⭐⭐⭐⭐ Great choice!
*by J***. on October 22, 2025*

I am a repeat customer for these poly bags because they are very strong and the perfect size to ship many of my eBay sales. I love the beautiful, cheerful color!

### ⭐⭐⭐⭐⭐ Great bags...
*by W***N on October 30, 2025*

I have purchased these bags many times from this seller and will continue to do so. I've not had a single issue with these bags (other than user errors), and I've mailed thousands of products to customer. The tape strip is strong, and once it adheres it will not let go lol. The thickness is as advertised. They are a great value.

## Frequently Bought Together

- UCGOU Poly Mailers 19x24 Inch Black 50 Pack Extra Large Shipping Bags Strong Thick Mailing Envelopes Self Seal Adhesive Waterproof and Tear Proof Boutique Postal for Clothing Quilt and More
- UCGOU Poly Mailers 14.5x19 Inch Black 100 Pack Large Shipping Bags #7 Strong Thick Mailing Envelopes Self Sealing Adhesive Waterproof and Tear Proof Boutique Packaging Postal for Clothing
- KKBESTPACK 100 Large Poly Mailers 10x13 Shipping Bags for Small Business – Self Sealing Package Envelopes (10 x 13 Pack of 100, Black)

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**Shop now:** [https://www.desertcart.co.za/products/197523787-ucgou-poly-mailers-19x24-inch-black-50-pack-extra-large](https://www.desertcart.co.za/products/197523787-ucgou-poly-mailers-19x24-inch-black-50-pack-extra-large)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-01-28*