Telescoping Poster Tube Expanding Art Transport Tube Inner diameter 6cm/2.36inch, outer diameter 6.50cm/2.55inch, and expandding length from 17.32inch (44cm) to 29.72inch (75.50cm Telescoping Poster and Document storage tube carrying case easy for anyone to carry. Suitable for student, teacher, architect, artist Telescopic drawing storage tube widely used for storing poster, sketching paper, architect paper, paper roll, artwork, map, document Each telescoping poster tube expanding document carrying case used to transport and protect your valuable artwork, document scrolls, canvas, and anything you can roll, make placement more secure, donot worrying about creases, wrinkles, damage during transportation and storage Our telescoping bueprint carrying tube crafted with pp, light in weight, water resistant and moistureproof, not easy to fade and break; ensures the content stay dry and secure during transit