Premium Material: The Poster Tube is made of PE, protect contents from bending or creasing in transit. Tube is also water and light resistant, protecting materials against fading from exposure to sun light Size: The telescoping storage tube can extend from 44cm-75.5cm/17.32inch-29.72inch in length, inner diameter 6cm/2.36inch, and outer diameter 6.5cm/2.56inch, almost handling various poster dimensions Feature: The tube can be adjusted to different lengths, use this storage tube to transport and protect your beloved artwork and documents Adjustable Strap: Our document tube has an adjustable shoulder strap that is comfortable for use even when the blueprint tube is fully extended Widely Used: Storage tube for posters, blueprints, maps, canvas, documents, large photo prints, drawings, tracing papers, artwork, fishing rods, drumsticks, etc. great for artists, illustrators, drafters, architects, etc. Specification: Material: PE Size Chart: Length: 44cm-75.5cm/17.32inch-29.72inch Inner Diameter: 6cm/2.36inch Outer Diameter: 6.5cm/2.56inch Package Includes: 1 Extendable Poster Tube Note: Please allow slightly errors 1-2cm differences due to manual measurement.