Our Gaylord Archival® 6" Diameter Roll Storage Tubes (2-Pack) are ideal for storing and shipping textiles, tapestries, carpets, posters, large maps and more. They feature an acid-free, white interior layer surrounded by an exterior layer of blue/grey barrier board, for a total thickness of 3/16". The tubes are buffered to prevent acid migration and are made with a water-resistant, neutral pH adhesive. When storing items such as protein-based or dyed textiles, wrap a layer or two of unbuffered tissue over the tube before rolling the textile.