3 x 42" Kraft Tubes with Caps. Economical Kraft tubes are great for document storage or for mailing. 3-ply spiral wound construction for strength. White end caps (included) snap into place to hold contents secure. Caps will not pop off during shipment. Tubes are reusable and recyclable. Sizes listed are usable space. Actual tube lengths are longer. MTCAP3 Additional 3" End Caps sold separately.