Best STRBOXONG Box Mailers of 2025

Jordan Akhtar Avatar
Jordan Akhtar
Last Updated: 7 Feb 2025

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Box Mailers by STRBOXONG are a convenient and reliable solution for shipping and packaging needs. These sturdy and durable mailers are designed to protect your items during transit, ensuring they arrive in perfect condition. With easy-to-use self-sealing closures and a range of sizes available, these box mailers are suitable for a variety of items. Whether you're sending documents, clothing, or small products, STRBOXONG box mailers provide a secure and efficient way to send your items.

At a Glance: Our Top Picks

STRBOXONG Corrugated Shipping Boxes Pack of 10 Cover #TOP 1
STRBOXONG Corrugated Shipping Boxes Pack of 10
ftb score rating icon 9.9
Royal Mail Small Parcel Cardboard Boxes Cover #TOP 2
Royal Mail Small Parcel Cardboard Boxes
ftb score rating icon 9.8
24 Pcs Eco-Friendly Shipping Boxes Cover #TOP 3
24 Pcs Eco-Friendly Shipping Boxes
ftb score rating icon 9.6

Top 10 STRBOXONG Box Mailers

STRBOXONG Corrugated Shipping Boxes Pack of 10

Small Parcel Box(6×4×2 Inches)
Brown
15x10x5cm
STRBOXONG Corrugated Shipping Boxes Pack of 10 Cover
Corrugated Cardboard Shipping Boxes, 15x10x5cm Royal Mail Small Parcel Boxes, Packaging Mailing Boxes for Business, Posting, Storing or Gift(Pack of 10)

The STRBOXONG Shipping Boxes are ideal for packing, shipping, mailing, or storing small items. Constructed from robust 32ECT-E single wall corrugated kraft cardboard, these boxes are both eco-friendly and sturdy for everyday use. With dimensions that qualify for Royal Mail Small Parcel postage, they are perfect for sending gifts or products weighing under 2KG. They arrive flat-packed, making storage easy, and you will appreciate how quickly they can be assembled without the need for tapes, glue, or staplers.

What We Like
Eco-friendly and recyclable material
Perfect for small items
Easy to store flat
Quick assembly without tools
#TOP 2

Royal Mail Small Parcel Cardboard Boxes

Small Parcel Mailer(23×16×5 cm)
Brown
23x16x5cm
Royal Mail Small Parcel Cardboard Boxes Cover
Corrugated Cardboard Shipping Boxes, 23×16×5cm Royal Mail Small Parcel PiP Postal Boxes, Brown Packaging Mailing Boxes for Business, Posting, Storing or Gift (25 Pcs)

The STRBOXONG Cardboard Boxes are ideal for packing, shipping, mailing, or storing small items. Their strong construction ensures that your products or gifts remain secure during transit. You can easily send parcels under 2KG with these boxes, which also qualify for Royal Mail Small Parcel postage. Additionally, the eco-friendly and recyclable kraft cardboard makes them a sustainable choice for your packaging needs, helping you to reduce your environmental footprint.

What We Like
Strong and sturdy construction
Eco-friendly and recyclable material
Flat packed for easy storage
Suitable for Royal Mail postage
#TOP 3

24 Pcs Eco-Friendly Shipping Boxes

Small Parcel Mailer(20.8×13×6.8 cm)
Brown
20.8×13×6.8cm
24 Pcs Eco-Friendly Shipping Boxes Cover
24 Pcs Corrugated Cardboard Shipping Boxes, 208×130×68mm Royal Mail Small Parcel PiP Postal Boxes, Brown Packaging Mailing Boxes for Business, Posting, Storing or Gift(Pack of 24)

The STRBOXONG Shipping Boxes are ideal for packing, shipping, mailing, or storing small items. Made from strong, eco-friendly corrugated cardboard, these boxes ensure your products or gifts are securely enclosed. Measuring 208mm x 130mm x 68mm, they qualify for Royal Mail Small Parcel postage, making them convenient for sending items under 2KG. Additionally, they arrive flat packed for easy storage and can be assembled in seconds, providing you with a hassle-free packaging solution.

What We Like
Eco-friendly and recyclable material
Sturdy for daily use
Qualifies for Royal Mail postage
Easy to store and assemble
#TOP 4

Royal Mail 10x10 Brown Shipping Boxes

Small Parcel Box (4×4×0.8 Inches)
Brown
10x10x2cm
Royal Mail 10x10 Brown Shipping Boxes Cover
Corrugated Cardboard Shipping Boxes, 10x10x2cm Royal Mail Letter PiP Postal Boxes for Posting, Brown Packaging Mailing Boxes for Business, Storing or Gift (Pack of 25)

The STRBOXONG Shipping Boxes are perfect for packing, shipping, mailing, or storing small items. These robust boxes are made from eco-friendly and recyclable kraft cardboard, ensuring durability for daily use. With an outer size of 10cm x 10cm x 2cm, they qualify for Royal Mail Letter postage if your items weigh under 750g. The flat-packed design allows for easy storage, and you can assemble them in seconds without the need for tapes, glue, or staplers, providing you with a hassle-free experience.

What We Like
Eco-friendly and recyclable material
Perfect size for small items
Easy to store and assemble
Qualifies for Royal Mail Letter postage
#TOP 5

A4 Corrugated Cardboard Shipping Boxes for Business

Small Parcel Mailer(320×222×46 mm)
Brown
320x222x46 mm
A4 Corrugated Cardboard Shipping Boxes for Business Cover
A4 Corrugated Cardboard Shipping Boxes, 320×222×46mm Royal Mail Small Parcel PiP Postal Boxes, C4 Brown Mailing Boxes for Business, Posting, Storing or Gift (15 Pieces)

The STRBOXONG Shipping Boxes are ideal for packing, shipping, mailing, or storing small items. Made from strong, eco-friendly corrugated kraft cardboard, these boxes ensure durability while being kind to the environment. With an outer size of 320mm x 222mm x 46mm, they are perfect for sending little products or gifts. Each box qualifies for Royal Mail Small Parcel postage if under 2KG, making it convenient for your shipping needs. Their flat-packed design allows for easy storage, ensuring you always have a suitable box on hand when required.

What We Like
Eco-friendly and recyclable material
Perfect size for small items
Convenient for mailing and storing
Strong and durable construction
#TOP 6

STRBOXONG Eco-Friendly Corrugated Shipping Boxes

Patterned Boxes
Sakura
20x15x5cm(10 pcs)
STRBOXONG Eco-Friendly Corrugated Shipping Boxes Cover
STRBOXONG Patterned Corrugated Cardboard Shipping Boxes Gift Boxes with Lids 200×150×50mm Royal Mail Postage Small Parcel Postal Boxes for Business Posting or Gift Packaging Mailing (Sakura)

The STRBOXONG Shipping Boxes are ideal for packing, mailing, or storing small items. Made from durable, eco-friendly cardboard, they ensure your gifts or products are well-protected during transit. With an outer size suitable for Royal Mail Small Parcel postage, these boxes are perfect for businesses looking to send items under 2KG. Their flat-packed design allows for easy storage, so you can keep them handy without taking up much space.

What We Like
Eco-friendly and recyclable materials
Sturdy for daily use
Perfect for small items
Easy to store flat
Suitable for Royal Mail postage
#TOP 7

STRBOXONG Royal Mail Small Parcel Boxes

Small Parcel Mailer(4×4×2 Inches)
Brown
10x10x5.3cm
STRBOXONG Royal Mail Small Parcel Boxes Cover
Corrugated Cardboard Shipping Boxes, 100x100x53mm Royal Mail Small Parcel PIP Boxes, Packaging Mailing Boxes for Business, Posting, Storing or Gift(Pack of 10)

The STRBOXONG Shipping Boxes are ideal for packing, mailing, or storing small items, making them perfect for sending gifts or products. Constructed from strong, eco-friendly corrugated kraft cardboard, these boxes ensure durability for everyday use. Their compact size allows them to qualify for Royal Mail Small Parcel postage if under 2KG, providing a convenient mailing option. Additionally, they arrive flat packed for easy storage, allowing you to assemble them quickly without the need for tapes, glue, or staplers.

What We Like
Strong and durable material
Eco-friendly and recyclable
Compact size for easy mailing
Flat packed for storage convenience
#TOP 8

STRBOXONG Eco-friendly Brown Cardboard Boxes

Small Parcel Mailer(30×5.5×5.5 cm)
Brown
300×55×55 mm
STRBOXONG Eco-friendly Brown Cardboard Boxes Cover
STRBOXONG Brown Cardboard Shipping Boxes (Pack of 10), 30x5.5x5.5cm, Eco-friendly, Recyclable, Ideal for Small Items, Posting, Storing or Gifting

The STRBOXONG Cardboard Boxes are perfect for packing, shipping, or storing small items. Made from strong, eco-friendly kraft cardboard, these boxes ensure that your items are well-protected while being environmentally conscious. With their compact size, they are ideal for sending gifts or products through the post, qualifying as a Royal Mail Small Parcel if under 2KG. The boxes arrive flat-packed, allowing for easy storage and quick assembly without the need for tapes or glue, making your packing process hassle-free.

What We Like
Eco-friendly and recyclable material
Strong and sturdy construction
Perfect for small items
Easy to store and assemble
#TOP 9

Royal Mail Small Parcel Cardboard Boxes

Small Parcel Mailer(275×223×65mm)
Brown
275x223x65 mm
Royal Mail Small Parcel Cardboard Boxes Cover
Corrugated Cardboard Boxes, 275×223×65mm Royal Mail Small Parcel PiP Postal Boxes, Brown Mailing Boxes for Business, Posting, Storing or Gift (10 Pieces)

The STRBOXONG Cardboard Boxes are ideal for packing, shipping, mailing, or storing small items. Made from durable, eco-friendly corrugated kraft cardboard, these boxes ensure your products or gifts remain safe during transit. With dimensions that qualify for Royal Mail Small Parcel postage, you can conveniently send packages weighing up to 2KG. The flat-packed design allows for easy storage, making them a practical solution for your mailing needs without the hassle of additional packing materials.

What We Like
Strong and durable material
Eco-friendly and recyclable
Convenient flat-packed design
Ideal for small items
#TOP 10

C5 A5 Royal Mail Large Letter Shipping Boxes

ROYAL MAIL C5 BOX(22× 16 ×2cm)
Brown
C5(Pack of 25)
C5 A5 Royal Mail Large Letter Shipping Boxes Cover
C5 A5 Royal Mail Large Letter PIP Boxes, 220x160x20mm Corrugated Cardboard Shipping Boxes, Brown Small Postal Packaging Mailing Boxes for Business, Posting, Storing or Gift (Pack of 25)

The Royal Mail Shipping Boxes are ideal for packing, shipping, mailing, or storing small items. Made from strong, eco-friendly corrugated cardboard, these boxes ensure your products or gifts remain secure during transit. Their size qualifies for Royal Mail Large Letter postage, making it convenient for you to send parcels weighing under 750g. Additionally, the boxes arrive flat-packed, allowing for easy storage and quick assembly, so you can get your items ready to send in no time.

What We Like
Eco-friendly and recyclable materials
Perfect for small items
Qualifies for Large Letter postage
Easy to store and assemble
Buying Guide Image
Editor's Notes

During our STRBOXONG box mailer research, we found 30 STRBOXONG box mailer products and shortlisted 10 quality products. We collected and analyzed 7,601 customer reviews through our big data system to write the STRBOXONG box mailers list. We found that most customers choose STRBOXONG box mailers with an average price of £17.90.

The STRBOXONG box mailers are available for purchase. The top 10 picks range in price from a low of £9.00 to a high of £25.00, find the one that fits your budget. The seller of top 1 product has received honest feedback from 133 consumers with an average rating of 4.9.

Written by
Jordan Akhtar Avatar

Jordan Akthar owns one stationery store in Bradford, and another in Derby. He started with a corner bookshop, and now the rest is history. He is often found in his stores taking count of inventories of books and stationery. Jordan also likes to write, and this drove his passion for writing articles on stationery maintenance. He owns a blog, where in his free time, he would write DIY tips on how you can recycle and refine your stationeries.