Chartpak Expandable Tube System 12 in. x 2 1/2 in. black small middle expansion

A versatile plastic storage and protection unit for carrying, storing or mailing documents of virtually any length. Available in both 2.5 in. (small) and 3.5 in. (large) diameters. Available options include an adjustable carrying strap for portability (sold separately). Add expansion tubes (sold separately) to expand tube to desired length.