--- 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: "NT$2171" currency: TWD in_stock: true category: "Ucgou" url: https://www.desertcart.tw/products/197523787-ucgou-poly-mailers-19x24-inch-black-50-pack-extra-large store_origin: TW region: Taiwan --- # 19x24 inch extra-large size Strong year-round 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:** NT$2171 **Availability:** ✅ In Stock ## Summary > 📦 Ship Bold, Ship Smart — Make Every Package a Statement! ## 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?** NT$2171 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/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 - • **Seal the Deal Securely:** Four-season adhesive ensures a rock-solid seal that won’t falter in heat, cold, or transit chaos. - • **Stand Out with Sleek Black:** Elevate your brand with bold, opaque black mailers that protect privacy and catch eyes in every mailbox. - • **Built to Brave the Elements:** Waterproof, tear-resistant polyethylene shields your shipments rain or shine—no compromises on safety. - • **Effortless Packaging Efficiency:** Self-seal design saves time and cuts down on extra packing materials—perfect for busy entrepreneurs. - • **Boost Brand Recognition Instantly:** Vibrant, professional look that makes your packages memorable and customers feel valued. ## Overview UCGOU’s 19x24 inch black poly mailers combine heavy-duty, waterproof polyethylene with a strong, all-weather self-seal adhesive. Designed for non-fragile items like clothing and quilts, these opaque, tear-resistant bags protect privacy and enhance brand presence with their sleek black finish. The 50-pack offers a cost-effective, time-saving solution for small to medium businesses aiming to impress customers and ensure secure deliveries. ## 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 ## 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 | #645 in Office Products ( See Top 100 in Office Products ) #24 in Envelope Mailers | | Brand | UCGOU | | Brand Name | UCGOU | | Closure Type | Self-Seal | | Color | Black | | Customer Reviews | 4.8 out of 5 stars 20,993 Reviews | | Item Dimensions L x W | 24"L x 19"W | | Item Shape | Rectangular | | Manufacturer | UCGOU | | Material | Plastic | | Material Type | Plastic | | Number of Items | 50 | | Occasion | Graduation | | Occasion Type | Graduation | | Recommended Uses For Product | Invitation Card, Letter | | Size | 19x24" 50PC | | Style | Poly | | Unit Count | 50 Count | ## Product Details - **Brand:** UCGOU - **Closure Type:** Self-Seal - **Color:** Black - **Material:** Plastic - **Occasion:** Graduation ## 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/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. ## 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) --- ## 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.tw/products/197523787-ucgou-poly-mailers-19x24-inch-black-50-pack-extra-large](https://www.desertcart.tw/products/197523787-ucgou-poly-mailers-19x24-inch-black-50-pack-extra-large) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-10-23*