Range of eco-friendly secure triangular postal tubes. Directly manufactured by us, we provide the best value on a secure design of triangular postal tubes, whilst using 100% recyclable material which is sustainable for our planet. 


Dimensions are in order of length x diameter x height (mm)  - Internal Dimensions:

  • A3 330 x 46 x 80mm (Plain Brown)
  • Royal Mail 440 x 70 x 106mm (White)
  • A2 483 x 58 x 101mm (Plain Brown)
  • A1 686 x 65 x 112mm (Plain Brown)
  • A0 940 x 65 x 112mm (Plain Brown)

Our range of triangular postal tubes are an ideal all-in-one solution for protecting your documents in transit, offering several key features that make them preferable to traditional circular tubes. 

The advantage to triangular tubes compared to round tubes is that they are easy & efficient to stack compared to round postal tubes that can quickly roll all over the place. Supplied in flat, they’re easier to store, and they have a geometric shape that gives them extra strength by design.

Made from a single piece of board for extra strength and durability, with a twin tab locking system on the ends so no tape or plastic end caps are required to seal them shut making them full recyclable and biodegradable.
Perfect for posting posters, artwork, walking sticks, umbrellas, golf clubs, fishing rods, windows blind and other long items. Also suitable for anything that can be rolled.

Why Triangular?

– Supplied flat – takes up much less storage.

– Manufactured in lightweight E-flute corrugated board.

– 100% recyclable, plastic free.

– Our sizes of A0, A1, A2 & A3 meet all international posting standards.

– With peel & seal tape for ease of closure, there is no need for additional packaging tape.

Assembly instructions: 
Step 1 – Remove backing from tape 
Step 2 – Roll up into triangle and secure with taped panel , then slide poster etc into mailer
Step 3 – Fold up  panel 1  ( the one with the corner rounded off )  
Step 4 – Fold up panel 2  ( the one with the cut out hole in it ) 
Step 5 – Fold up panel 3 ( the triangular panel ) 
Step 6 – Secure by sticking down small tab 
Repeat steps 3 – 6 on other end 

Delivery policy: We aim to deliver within 1-3 working days of purchase. We will also continue to update you on despatch and delivery upon your purchase.


Returns policy: If you believe the item we have delivered is damaged, faulty or not as described, than you should contact us within 5 working days. 

Other than mainland UK, we can deliver to the following locations below, but there will be an agreed additional delivery charge:

Northern Ireland, Isle of Man, Scottish Highlands, Isle of Wight, Scilly Isles and Scottish Islands.