These unique transparent PVC mailing and storage tubes are designed for anything that can be rolled including charts maps blueprints and posters, One end cap is sealed closed and the other removable, Tubes are moisture proof and have removable adjustable shoulder straps, Shrink wrapped, Lead and phthalate free, The MS series is moisture and dust proof with a screw cap at each end and an adjustable shoulder strap, 25"" 37"" and 43"" L with 2¾"" inside Diameter, SKU: ALV5040