Our A3 Narrow Postal Tubes are ideal for sending single sheets, or tightly rolled A3 sized documents and offer excellent in transit protection. Supplied with snuggly fitting end caps, that can be taped for added security, our narrow postal tubes are ideal for sending, storing and protecting all your posters, papers, documents and other cylindrical goods. If you need to create custom length postal tubes, simply cut our Made from recycled fibreboard, these cardboard tubes are recyclable and biodegradable – without the end caps – making them the perfect eco-friendly mailing solution.