This black plastic telescoping document poster tube is 3.5" in diameter. Tube expands from 30.3" up to 53.9". Convenient to store and transport artwork, paintings, proofs, architectural drawings, blueprints, posters, and banners. This poster tube is made of plastic to protect contents from bending or creasing in transit. Lightweight design. The tube can be squeezed by hand and it will flatten somewhat, but still offers good protection to content. The tube is also water and light-resistant, protecting materials against fading from exposure to sunlight. Comes with a long shoulder strap that is comfortable for use even when the tube is fully extended. At full extension, the strap stretches to a straight line. Twist off the threaded lid for easy storage. This storage tube has unlimited uses, great to store posters, blueprints, maps, documents, large photo prints, drawings, artwork, arrows, fishing rods, drumsticks, or whatever else you can imagine.