--- product_id: 188877003 title: "BOX USA Rigid Mailers 12.75 x 15 (100-Pack) - Cardboard Mailer Envelopes for Photos, Artwork, Certificates - Stay Flat" brand: "box usa" price: "€ 350.38" currency: EUR in_stock: true category: "Box Usa" url: https://www.desertcart.pt/products/188877003-box-usa-rigid-mailers-12-75-x-15-100-pack store_origin: PT region: Portugal --- # 12.75" x 15" oversized size 100-pack bulk value Rigid, stay-flat protection BOX USA Rigid Mailers 12.75 x 15 (100-Pack) - Cardboard Mailer Envelopes for Photos, Artwork, Certificates - Stay Flat **Brand:** box usa **Price:** € 350.38 **Availability:** ✅ In Stock ## Summary > 🛡️ Protect your brand’s first impression with mailers that mean business. ## Quick Answers - **What is this?** BOX USA Rigid Mailers 12.75 x 15 (100-Pack) - Cardboard Mailer Envelopes for Photos, Artwork, Certificates - Stay Flat by box usa - **How much does it cost?** € 350.38 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/188877003-box-usa-rigid-mailers-12-75-x-15-100-pack) ## Best For - box usa enthusiasts ## Why This Product - Trusted box usa brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk 100-Pack Efficiency:** Stock up and streamline your shipping with a cost-effective pack designed for high-volume professionals. - • **Generous 12.75" x 15" Size:** Perfectly sized for large prints and paperwork, ensuring your important items fit with room to spare. - • **Stay-Flat Rigid Protection:** Keep your photos, artwork, and documents pristine—no bends, no creases, just flawless delivery. - • **Versatile Multi-Use Design:** From eCommerce fulfillment to flat storage, these mailers adapt to all your business and creative needs. - • **Professional Bright White Finish:** Make every shipment look sharp and polished—ideal for client-facing mail and official documents. ## Overview BOX USA Rigid Mailers (12.75" x 15", 100-pack) are heavy-duty, stay-flat cardboard envelopes designed to protect photos, artwork, certificates, and documents during shipping. Featuring a self-seal adhesive for quick packing, these bright white mailers combine professional presentation with durable, moisture-resistant construction. Ideal for high-volume shipping, they offer a cost-effective, reliable solution for businesses and creatives seeking pristine delivery without extra inserts. ## Description BOX USA Stayflat Flat Mailers offer dependable packaging for documents, photos, artwork, and marketing materials. These rigid envelopes are crafted from sturdy chipboard to keep contents flat and secure during shipping and handling. Our stayflat design eliminates bending of contents without the need for extra inserts or stiffeners, ensuring arrival looking professional and undamaged. Each mailer is lightweight, helping to save on postage while still providing excellent rigidity and meet the needs of USPS First Class, Priority Mail, and commercial carrier requirements. These mailers feature a reliable peel-and-seal adhesive strip that makes packing quick, clean, and secure protecting against tampering while providing moisture resistance. For companies managing large order volumes, BOX USA offers bulk packs of 100 or more in multiple sizes making them ideal for e-commerce sellers, fulfillment centers, print shops, and offices that need consistent, professional packaging. Many small businesses use these flat mailers for shipping brochures, photos, invoices, or product literature, while creative professionals rely on them for mailing artwork, proofs, or promotional pieces. The versatile design also makes them suitable for mailing books, magazines, calendars, and other media that must stay flat. ## Features - RIGID PAPERBOARD CONSTRUCTION: Self-sealing mailers made from stay-flat paperboard designed to resist bending and help keep contents flat during transit. Suitable for shipping photos, artwork, certificates, and documents. - 12-3/4" x 15" SIZE FOR LARGE ITEMS: Cardboard mailer envelopes designed for larger prints and paperwork. Useful for mailing photos, documents, and flat materials that require wider coverage. - 100-COUNT PACK: Bulk pack of 100 cardboard envelopes for home businesses, offices, classrooms, and shipping stations. Helps maintain consistent packing for mailing and fulfillment. - BRIGHT WHITE SURFACE: White cardboard envelopes designed for labeling, barcodes, and shipping information. Suitable for mailing documents, photos, and printed materials. - MULTI-USE FOR SHIPPING AND STORAGE: Can be used for mailing photos, artwork, certificates, and documents, or for flat storage and organization. Made in the USA from recycled materials. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B081ZRVN8S | | Additional Features | Lightweight, Reusable, Scratch Resistant, Self-Adhesive Closure, Tear Resistant | | Best Sellers Rank | #11,240 in Office Products ( See Top 100 in Office Products ) #169 in Envelope Mailers | | Brand Name | BOX USA | | Closure Type | Self-Seal | | Color | White | | Customer Reviews | 4.7 4.7 out of 5 stars (613) | | Global Trade Identification Number | 00193116472080 | | Included Components | Flat Mailers | | Item Dimensions L x W | 15"L x 12.75"W | | Item Shape | Rectangular | | Item Weight | 34 pounds | | Manufacturer | BOX USA | | Material Type | Cardboard | | Model Name | BURM4SS | | Number of Items | 100 | | Occasion | all occasions | | Occasion Type | Business | | Recommended Uses For Product | Letter | | Size | 12.75" x 15" (100-Pack) | | Style | Flat | | UPC | 193116472080 | | Unit Count | 100 Count | ## Product Details - **Brand:** BOX USA - **Closure Type:** Self-Seal - **Color:** White - **Material:** Cardboard - **Occasion:** all occasions ## Images ![BOX USA Rigid Mailers 12.75 x 15 (100-Pack) - Cardboard Mailer Envelopes for Photos, Artwork, Certificates - Stay Flat - Image 1](https://m.media-amazon.com/images/I/618Vwym0D5L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What is the weight per 12.75 x 15 mailer?** A: 5.4 oz **Q: How much does one mailer weigh in ounces?** A: My scale says 3.4 ounces. **Q: Are these suitable for a heavy book (5 or 6 lbs)? Thanks.** A: Depends on shape and thickness of book. I would use a poly mailer instead as a heavy book could split the seams of mailer and potentially fall out. **Q: How much does one mailer weigh?** A: Not sure of the weight but I used them to mail portrait packages with 3 8x10’s in each stay flat mailer. The least expensive method to mail was 1.67 through USPS --- ## 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.pt/products/188877003-box-usa-rigid-mailers-12-75-x-15-100-pack](https://www.desertcart.pt/products/188877003-box-usa-rigid-mailers-12-75-x-15-100-pack) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-23*