--- product_id: 46807937 title: "9x12 Envelopes (Bright White) - Open Side 9x12 Booklet Envelopes - Pack of 55 White Envelopes 9x12 28lb Paper - Check O Matic" brand: "business envelopes" price: "€ 7.54" currency: EUR in_stock: false reviews_count: 8 category: "Office Product" url: https://www.desertcart.hr/products/46807937-9x12-envelopes-bright-white-open-side-9x12-booklet-envelopes-pack store_origin: HR region: Croatia --- # 28lb heavy-duty paper Pack of 55 envelopes Gummed closure for security 9x12 Envelopes (Bright White) - Open Side 9x12 Booklet Envelopes - Pack of 55 White Envelopes 9x12 28lb Paper - Check O Matic **Brand:** business envelopes **Price:** € 7.54 **Availability:** ❌ Out of Stock ## Summary > πŸ“¬ Elevate Your Mailing Game! ## Quick Answers - **What is this?** 9x12 Envelopes (Bright White) - Open Side 9x12 Booklet Envelopes - Pack of 55 White Envelopes 9x12 28lb Paper - Check O Matic by business envelopes - **How much does it cost?** € 7.54 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/46807937-9x12-envelopes-bright-white-open-side-9x12-booklet-envelopes-pack) ## Best For - business envelopes enthusiasts ## Why This Product - Trusted business envelopes brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Value Pack for All:** With 55 envelopes in a pack, you’ll always be prepared for those important mailings, whether at home or in the office. - β€’ **Secure Your Secrets:** Moisture-sensitive gummed flaps ensure your contents stay safe and sound, no matter where they travel. - β€’ **Effortless Insertion:** Open-side design means no more struggling to fit large documents; simply slide them in with ease. - β€’ **Sleek & Professional:** The blank design allows for easy customization, making these envelopes perfect for any formal correspondence. - β€’ **Unmatched Durability:** Crafted from robust 28lb paper, these envelopes are built to withstand the weight of your most important documents. ## Overview These 9x12 Bright White Open Side Booklet Envelopes are made from durable 28lb paper, featuring a secure gummed closure and a blank design for easy customization. Ideal for sending large documents, this pack of 55 envelopes is perfect for both personal and professional use. ## Description Ideal for Booklets and Brochures This open side envelope is great for large documents that cannot be folded. They are perfect for mailing booklets, reports, unfolded A4 sheets, and much more. Durable Paper Quality Among other things, the heavy-duty 28lb paper quality grants these 9 x 12 white envelopes enough strength to carry, thick stacks of unfolded A4 documents, spiral bound booklets, hard bound brochures. Its durable construction also reduces the risk of tear when handling them and thereby eliminate wastage. Printer-Friendly Design Its bright white color coupled with its blank design make these envelopes highly printer friendly. These envelopes can be printed upon using most standard laser and inkjet printers. Easy Moisture Sensitive Seal Every single 9x12 envelope in the pack comes with a gummed flap. Lined with high quality glue, these need little moisture and even less effort to deliver a secure seal. ## Features - DURABLE 28LB PAPER: These 9 X 12 white envelopes are made from 28lb heavy-duty paper. Its durable construction allows the booklet envelope to carry much thicker stacks of documents than ordinary 24 lb paper envelopes. - TRUSTED GUMMED CLOSURE: This Check O Matic booklet envelope comes with moisture sensitive gum-lined flaps. This a trusted and convenient sealing technology that keeps the envelope’s precious cargo secure. - BLANK DESIGN: Perfect for formal correspondence, these 9x12 white envelopes have a completely blank design. This makes writing and printing on them extremely easy. - OPEN-SIDE DESIGN: The open side booklet-style design of these envelopes makes inserting large documents much easier. These 9X12 envelopes are great for sending large brochures, reports, legal paper, large invitations, or any documents that cannot be folded. - PACK OF 55: This pack of 55 booklet envelopes is great for both personal and business users. If you need to send out large unfolded documents every now and then then this pack is a great choice for you. ## Images ![9x12 Envelopes (Bright White) - Open Side 9x12 Booklet Envelopes - Pack of 55 White Envelopes 9x12 28lb Paper - Check O Matic - Image 1](https://m.media-amazon.com/images/I/21LyCr-ZrML._SL500_.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice weight white envelopes. *by M***Y on Reviewed in the United States on April 17, 2015* Nice white 28lb. paper envelopes with the flap opening on the long side and seamed at the end/edges. I bought these envelopes for the purpose of storing documents, brochures, 8 x 10 photos, etc... mainly in hanging files. I like them better than plain manila folders (open or closed end).They offer ample room for several pages and would work well as mailers (documents/photos/etc...). You also avoid any issues with the USPS by using envelopes without metal clasps.I can't speak to the quality of the glue used on the flap. I would probably used tape as insurance.These envelopes were just what I wanted and at a fair price. ### ⭐⭐⭐⭐⭐ Would buy again *by C***S on Reviewed in the United States on January 3, 2019* Perfect envelopes for an oversized postcard invitation. Really want to hand them out though. Postage is high for this size. ### ⭐⭐⭐⭐⭐ Hand made cards fit great! *by C***K on Reviewed in the United States on June 5, 2017* These are wonderful for the new box cards I am making. The cards are larger than "normal" and have so many dimensions making them "puffy" and not fitting in my regular size envelopes. The cards fit in these envelopes. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/46807937-9x12-envelopes-bright-white-open-side-9x12-booklet-envelopes-pack](https://www.desertcart.hr/products/46807937-9x12-envelopes-bright-white-open-side-9x12-booklet-envelopes-pack) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-17*