The lines that belong together
Order the length you post. A longer tube is a different parcel.
Tubes do not replace book wraps. A book is flat. A poster is a roll.
The line that stays separate
a square box stays on its own order line. A square box needs fill in the corners and still presses a roll.
Postal tubes is the range Packaging Boxes uses for postal tubes.
One basket
Tubes are their own range, for posters, plans and other rolls.
On Packaging Boxes, put Postal tubes on the order with the lines it belongs to, so you are not paying a second delivery for the piece you forgot. Free UK delivery starts over £50 ex VAT.
Open Postal tubes when you already know this line. Check how many tubes are in the pack. Packaging Boxes will still dispatch an order placed by 3pm on the same day.