Artbin Transport Tube Model AT60-T...Keep large papers neat and wrinkle free. Water resistant and virtually unbreakable. 3 inch (7.60 cm) diameter. End caps fit tightly for secure, worry-free transport. Features adjustable shoulder strap for easy carrying. Telescopes from 34 inches (86.36 cm) to 60 inches (152.40 cm) and locks to desired length. Dimensions: 3 inch diameter, 30-60 inch length (7.62 centimeter diameter, 76.20-152.40 centimeter length).