ABOUT USJEUIHAU has a friendly and enthusiastic team that is committed to providing quality products and answering questions for our customers. Our products adopt carefully selected materials and exquisite production technology. The product quality is guaranteed. Why JEUIHAU? ?They are great to ship the products ensuring they do not get damaged nor do the tube. Caps seal tightly as well. ?Our cardboard mailing tubes are thick and sturdy so you don't have to worry about posters getting bent in storage or shipping. ?Perfect to roll diamond paintings, posters, papers or documents, etc in. They are sturdy and end caps are a tight fit. ?They are able to support a lot of weight and have not buckled. Great for storing stuff and also great for shipping. SPECIFICATION: Material: Kraft Diameter: 1.57 inches Length: 16 inches Thickness: 0.1 inch Color: brown Quantity: 18 x Mailing Tubes with Caps