ROUND MAILING TUBES WHITE TUBES Product No.   HTP-3018-W Inside Size Dia. X L   3 x 18" Thickness   .07 Wt. (lbs.) Per Ca.   15* Qty Per Case   24 1 - 2   $32.64 ($1.36) 3 - 8   $30.00 ($1.25) 9 +   $27.84 ($1.16) Quantity: