A mailing tube, also known as a paper core, is a cylindrical cardboard container used for packaging and shipping items like documents, paintings, and posters that fit neatly into the cylinder. To guarantee that the contents are safeguarded during transit, they are often constructed of corrugated cardboard or three layers of wood. They ensure that the box arrives safely and wrinkle-free because they won't break or bend under pressure. Perfect for packaging and delivering cylindrical packaged goods, lengthy items (like bands, profiles, etc.), and various rollable things like your marketing materials and sketches.