Telescopic design Our extendable poster tube features a convenient telescopic design that extends from 19.69 inches to 35.43 inches, allowing a single tube to fit a range of poster sizes and reducing the need for multiple tubes. Waterproof and light-proof The tube is waterproof to prevent bending and moisture during transport, and light-proof to protect posters from sunlight fading during storage and transit. This helps ensure your materials stay in good condition. Easy to carry An adjustable shoulder strap enhances comfort and convenience, making it easy to carry and accessible for quick use in any setting. Versatile and dependable Designed for storing and transporting posters, projects, maps, and documents, this tube provides reliable protection and straightforward handling for daily use. Use scenarios - Deliver posters or artwork to clients, studios, or meetings, keeping them flat and protected during transport. - Move classroom maps, student projects, or presentation boards between home, school, and events with minimal risk of damage. - Ship or store large-format prints for galleries, exhibitions, or tradeshow displays, maintaining shape and visibility. Key attributes Function: extendable poster storage and transport; Compatibility: accommodates a range of poster sizes (19.69in to 35.43in); Size: adjustable from 19.69 to 35.43 inches; Material: designed for waterproof and light-proof protection; Performance: prevents bending, fading, and damage during handling and transit.