Nozlen Black Smoothie Poster Tube Long 37" Smooth Black Plastic Tube for Map, Blueprint and Document Storage DT6001 Poster Tube with 2.75" Diameter with Smooth Interior Surface Fixed Length Tube is a Full 37" to Hold Very Wide Documents, Posters and Maps Very Strong, Durable Material, with a very Professional Look This Document Tube is Weather Resistant, Light Resistant, and Water Resistant Black Poster Tube has Removable Cap for Trouble Free Document Loading