my eco badges
Biodegradable Carbon NeutralCompostableLow Carbon FootprintUK MadePH NeutralRecyclableRecycled MaterialsSustainably Sourced
Biodegradable
Products with our Biodegradable icon on indicates that this product is capable of being decomposed by bacteria or other living organisms.
Carbon Neutral
Products with our Carbon Neutral icon on indicates that the making of this product didn't include any release of carbon dioxide into the atmosphere.
Compostable
Products with our Compostable icon on indicates that this product is capable of disintegrating into natural elements in a compost environment, leaving no toxicity in the soil.
Find out how to compost your boxes.
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Low Carbpm Footprint
Products with our Low Carbon Footprint icon on indicates that the production of this product does not prevent reaching net-zero by 2050 or sooner. Meaning production does not include any fossil fuel (including natural gas) energy generation not fitted with carbon capture and storage.
UK Made
Products with our 'UK made' symbol indicates the products have been designed and manufactered in the United Kingdom.
This is a product with a low carbon footprint and supports our local British industries.
PH Neutral
Products with the icon PH Neutral indicate that this item is neither acidic nor alkaline.
This can be important when packaging delicate clothing or photographic prints.
Recyclable
Products with our Recyclable icon on indicates that this product is capable of being repurposed after use.
Find out how to recycle your boxes.
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Recycled Materials
Products with our Recycled materials icon on indicates that this product is made from recovered materials which have then been processed to become a 'new' material.
Sustainably sourced
Products with our Sustainably sourced icon on indicates that while sourcing this product, social, ethical and environmental performance factors have been considered when selecting suppliers.
Product Information
High quality black mailer box accepted by the Royal Mail as a large letter gift box. This box is ideal to use as a monthly subscription box.
We recommend using packing tape for added security when mailing this item.
Please note that all measurements are internal.
Sorry printing is not available on this Black Postal Box.
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Next Day Delivery Available
No Robots Here
Eco-conscious
We re-use
Brand Online
Slim 1-Piece Flat Black Corrugated Postal Box
FMBL09
26339 in Stock
High quality black mailer box accepted by the Royal Mail as a large letter gift box. This box is ideal to use as a monthly subscription box.
We recommend using packing tape for added security when mailing this item.
Please note that all measurements are internal.
Sorry printing is not available on this Black Postal Box.
Read moreFrom £0.92£0.77
£1.14
£0.95
Product Dimensions
322 x 180 x 20
- Plain
tiny credit optionsEasy to use, flexible to suit you and your business
Tiny credit options to suit you, help you split your costs over time for the best interest of your business.
Iwoca 
The perfect payment credit option for businesses, here to support you and your customers.
- Pay in 3- interest free (LTD companies)
- Purchases from £150 - £15,000
- Nothing to pay for 30 days
- Setup in minutes
- Available at checkout
- Click here to find out more
Klarna
Pay in 30 days. Learn More.
18+, T&Cs apply, Credit subject to status.
PayPal Pay in 3 is an interest-free loan that lets you split your basket into 3 payments, with the first due at time of purchase and subsequent payments due every month on the same date. Please note that Pay in 3 is a form of credit, so carefully consider whether you can afford the repayments and be aware of the possible impact of missing payments, including making other borrowing more difficult or more expensive.
- Interest free and no set up fees
- Get a decision in seconds
- Paypal’s security and Buyers Protection
- Purchases from £30 to £2,000
Order Before 1pm for Next Day Delivery (Mon-Fri)
Check your delivery charge
Plant a tree - eco is awesomeSupport reforestation by completing your purchase
We're thrilled to be working with Tree Nation to help plant the trees to give back to the Earth. Which is even more important in the packaging industry to give back what we receive from the planet.
Tree-Nation is a home to 92 planting projects from 33 differents countries. You can choose to add Plant a Tree at checkout for only £1 to help do you bit for the planet. Tree-Nation is a non-profit organisation that allows citizens and companies to plant trees all around the world and offset their CO2 emissions.
Trees are key pillars of the world for both humans and the environment. They benefit us by purifying water, air and creating better social conditions. They benefit the environment by providing homes for various forms of life, cooling our climate and improving our soil. Offset your packaging by giving back to the planet.
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