Mailing Packs & Boxes
Ei-Packaging A3 Cardboard Postal Mailing Tube for Posters Artwork Blueprints, Quantity 20, Brown, 400mm x 76mm
400mm Length, 76mm Diameter, 2mm Thickness Suitable for A4/A3 Documents Made from strong cardboard Ends caps included Great for posting a range of documents with having to fold them
https://www.bizrate.co.uk/mailingpacksandboxes/ei-packaging-a3-cardboard-postal-mailing-oid5936582042.html