The Drawing Tube Adjustable length and secure seal: The tube can be extended to fit different sizes, and the end caps screw securely to keep your poster or artwork safely inside. PP material: Made of sturdy polypropylene, this tube protects contents from creasing, bending, or damage during transport. Easy to carry: An adjustable shoulder strap provides comfortable, hands transport for anyone. Widely compatible and versatile: Ideal for artists, illustrators, drafters, architects, and other creatives; suitable for storing paper, maps, canvases, and posters. Practical use scenarios: Transport rolled posters or large prints to client meetings, galleries, or exhibitions. Organize the studio by storing inprogress drawings, maps, canvases, and posters without risk of creasing. Carry design plans and large sheets to construction sites or client presentations during field work.