Inside Diameter (ID): 1.50"

Outside Diameter (OD): approximately 1.66"

Wall Thickness: .080"

Usable Length: 21"

Overall Length with caps: about 22"

These heavy-duty tubes feature plastic end caps and are manufactured in the United States. The brown tubes are designed for easy mailing and shipping of posters, prints, or other materials. Each tube is designed for maximum protection and durability, making them a reliable choice for businesses and individuals looking to transport their products securely.