Description: High Quality: Cardboard postal tubes are made of quality paper board with white end caps Super strong tubes are durable to use. Size: The poster tube measures 8 different length, 30cm/40cm/50cm/60cm/70cm/80cm/90cm/100cm; Inner diameter about 60mm, 3mm thick cardboard. Mailing Tube: Multi Used shipping tubes are ideal for holding rolled paper, photos, artwork, , posters, blueprints, graphics, documents, maps, scrolls, and charts, etc. Space Saving: Postal tubes won't taking up much space, and easily stackable, convenient to carry with you. Convenient End Caps: The cardboard are designed with caps on both ends, great for protecting the items from dirt during shipping, keep clean and tidy. Specification: Material: Paper Size Chart: Tube Length: 30cm/40cm/50cm/60cm/70cm/80cm/90cm/100cm Inner diameter: 60mm/2.36inch Thickness: 3mm/0.12inch Package Includes: 1 Piece Mailing Tube Note: Please allow slightly errors due to manual measurement and different monitors.