3Pack Poster Tube with Strap Expandable Blueprint Art Mailing Transport Carrier Tubes Holders Storage Expands from 22 to 38 inches Ecjiuyi Expandable Storage Tube is made of high quality durable and sturdy plastic, which is waterproof and light-resistant. The telescoping carrying case could expand from 22" to 34" with adjustable interlock.the diameter is 3.4?.br it has adjustable shoulder strap allowing for easy mobility and transportation. The Plastic Tube could be used for storing/ moving/ transporting/ travelling/ carrying Blueprint/Poster/Artwork/Document/Portfolio/Drafting/Painting. 3PCS Expandable Poster Tubes with Adjustable Strap:The storage tube could expand from 22" to 34" and the diameter is 3.4,includes an adjustable carrying strap. Poster Transport Tube with Unique Lock Design:Twist it according to the arrow direction,can easily and firmly lock , rendering the tube almost completely water and light resistan,your favorite poster in the tube case safely. Strong and Lightweight Telescoping Drawing Tube:Poster Tube is made of rigid plastic to your posters, artwork, and documents from bending or creasing in transit. Unlimited Uses DocumenT Storage Tube:The plastic tube could be used to storage and travel posters, blue prints, maps, documents, large photo prints, drawings, artwork, arrows, fishing rods and more. Perfectly suited for for artists, illustrators, architects or hobbyists. Ideal for storing paper, mayfair, tracing paper, canvases and posters. Also great for transporting drum sticks, arrows or other sporting gear.