SPJ: Large Telescoping Document Tube Case 30-50 Inches Poster Carrier Safely Transports and Stores Artwork Posters Blueprints Waterproof Expandable Professional Quality Color: Black Size: Length (Shortest About 30 inch / Longest About 50 inch) , Width (About 3.54 inch) , Weight (About 1.87lb) Ideal for artists, students, architects, designers, engineers and other craftspeople or office workers. Made from durable sturdy plastic. Telescopic locking function keeps the tube at your chosen length.