Ship with confidence using our Long Square Postal Tube Box
The ideal solution for sending a variety of items within the US or overseas.
📦 This box, made from strong corrugated kraft paper, is perfectly suited for securely transporting goods like posters, golf clubs, or blueprints. Its durable structure, crafted from high-quality corrugated kraft paper, provides maximum protection, while the unique long square design accommodates longer items without the need for bending or folding.
🌍 Eco-friendly and made from recyclable materials, it's an environmentally conscious choice for both domestic and international shipping.
This versatile and practical box meets diverse needs with ease, ensuring your items are safeguarded throughout their journey.
✅ Order now and enjoy a hassle-free shipping experience.
Popular e-commerce mailers
Download Our Cardboard Mailer Catalog
Looking to stock up on mailing essentials? Explore our extensive selection of premium mailing boxes, available in bulk! Click below to download our catalog, where you'll discover a variety of designs and sizes, complete with all the details you need. From high-quality cardboard boxes to envelopes and beyond – we offer custom sizes and prints on every type.
Please feel free to send inquiry for any of the types from the catalog. 📧
We promise it will change your mailing game forever!
Download the catalogFeatured product
Take me to the wine box collection
How easy and effective to use self-sealing boxes
Let customers speak for us
Altho I didn't order more of the sample I very much appreciate that they offered samples - try before you buy. Excellent customer service
I started using these mailers several years ago. There is nothing available anywhere like these! They are so easy to use. There is a strong piece of adhesive tape to seal these boxes, so it isn't necessary to invest in more tape or bubblewrap, etc. Postal workers always ask me about these boxes because they are so exceptional. If you look at the picture of this mailer, you will see the added reinforcement on the sides. It is very sturdy and helps protect the books as they travel through the system. I mail 8 1/2 x 11" books in these.
I am so happy that there is a new ColumPac distributor in the US! I ordered these boxes over the weekend and they were shipped first thing on Monday. I received them 2 days later. (I am also on the East Coast.)
I had excellent feedback from the owner of this company, too.
A HAPPY CUSTOMER!
Great packaging boxes for bulk LPS! And fast shipping!
Great service! On time delivery! Great Quality what more can you ask for?:-)
Very strong mailer. I shipped out already 20 packages, some traveled to UK. All customers happy, so am I.
I'm extremely happy with the self-sealing box that I ordered. Used to buy regular boxes but these types are real game changers. I highly recommend to others. Also delivery was quick. Thanks, Greg from PA
Want to see smiles on your customers' faces as they open their packages? Choose our brand for an unforgettable unboxing experience.
Looking for the ultimate packaging solution that checks all the boxes? Introducing ColomPac®—the gold standard in postal boxes, shipping mailers, and cardboard packaging. Our extensive range of high-quality products ensures your package isn't just sent; it's sent in style. And yes, our white boxes are not just aesthetically pleasing but also meticulously designed for functionality.
Quality is our top priority. Each box is crafted using high-grade materials, featuring our innovative self-sealing technology and an integrated tear-open strip for easy, secure shipping and effortless opening. We pay great attention to detail so you won’t have to compromise.
We offer immediate availability from our Colompac webshop to meet the dynamic demands of e-commerce. Our extensive range means you'll always find the perfect fit for your product.
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