BT-5 Body Tube. 18 White. Bulk Pack (12) [924005]. Rocketarium : Rocketarium Model Rocket Kits, parts and launch supplies

12 x BT-5 White Body Tubes. 18" long (45 cm). ID: 0.518" (13mm), OD: 0.544" (13.8 mm)
This tube is the exact same size as Estes BT-5 tube