Extra Large Panel Wrap Cardboard Mailers

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Extra Large Panel Wrap Cardboard Mailers - 1

Extra Large Panel Wrap Cardboard Mailers - 2

Extra Large Panel Wrap Cardboard Mailers - 3

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Strong single wall corrugated board, available in different size options
White Kraft finish
Extended edges for extra shock resistance
Quick retractable closure
Ideal for large, flat items such as calendars, posters, brochures, artwork, and more
Sold in packs, priced per envelope

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Attractive and protective

Crafted for securely mailing flat, oversized items, large letter boxes provide an ideal solution for ensuring contents arrive undamaged. Their construction comprises of strong single wall corrugated board ensuring durability, while the unique design features extended edges that enhance shock resistance, taken to safeguard shipments throughout transit. With a number of sizes available, including 430 x 310 x 10 mm, 550 x 430 x 10 mm, and 650 x 450 x 10 mm, these versatile large letter boxes cater to a wide range of packing requirements.

Equipped with a quick retractable tongue-lock closure, each envelope remains securely closed once locked in, protecting your products during transit. For added peace of mind, the use of additional vinyl packaging tape can further enhance security. Whether you are mailing calendars, posters, or brochures, these large letter boxes deliver an effective and practical mailing solution.

Delivered flat-packed in handy packs of 25 or 50, these products enable convenient storage and space efficiency.

How to use

Ensure large letter boxes are stored in a dry environment and laid flat to maintain their shape and effectiveness.
When ready to use, set up the box by folding along the pre-scored lines.
Place your items securely inside the box before using the tongue-lock closure to keep your contents safe.
For increased protection, consider applying vinyl packaging tape over the closure.
Dispose of the large letter boxes responsibly, as they are 100% recyclable.

Ideal applications

Retail businesses mailing marketing materials and brochures.
Educational institutions sending large portfolios or course books.
E-commerce shops dispatching flat products such as posters or artwork.
Corporate communications requiring the sending of oversized documents securely.

Product FAQs

What is a large letter box?

A large letter box is a specially designed envelope for securely mailing flat, oversized items to ensure they arrive without damage.

Can I post a large letter box through a letterbox?

No large letter boxes are typically too large for standard letterboxes and should be placed in post boxes or handed directly to postal staff.

Which type of postal box should I choose for the large letter box?

Selecting the right size of a large letter box is crucial. Based on your item dimensions, choose from the available sizes to ensure a proper fit.

How are these envelopes delivered?

Large letter boxes are delivered flat-packed, allowing for efficient storage and minimising space used in transit. We stock a variety of envelopes and mailing bags for different needs, from standard manilla envelopes for office use, to polythene mailing bags.

Explore our range of packaging solutions, including postal cardboard boxes and Jiffy bags & bubble envelopes, to meet all your mailing needs. With over 70 years of expertise, RAJA provides high-quality products to simplify your shipping process. Don’t miss out, check out other products in our range today.