Plastic Storage Tube - Hard Plastic Expandable Carrying Case - Store Documents, Blueprints, Artwork - Blue, Extends from 24 Inches to 40 Inches This Durable Tube Holder Protect Your Posters, Artwork, and Documents From Creasing While in Transit Tube is Water and Light Resistant - It Protects Materials Against Fading This Versatile Tube Has Unlimited Uses for Storage: Posters, Blue Prints, Artwork, Maps, Drafts Perfect for Artists, Illustrators, Architects or Hobbyists! Telescoping and locking feature extends from 24 inches to 40 inches in length.