3 x 42 Kraft Crimped End Mailing Tubes .070 Gauge 24/CaseSaves valuable packaging time with easy open and close crimped ends. Simply pinch the ends and the mailing tube is sealed. These economical mailing tubes save you money. No tape or end caps needed. These rigid mailing tubes resist folding or bending and can be reused. Sizes shown below are USABLE dimensions (amount of space AFTER ends are crimped)