Qualman Rocketry CR7080 Centering Rings (2)
The Qualman Rocketry CR7080 centering rings come in a 2 pack and are used to center a BT70 tube (2.217 diameter) into a BT80 body tube. They are precision laser cut from heavy gauge cardstock. You can also double up them for extra strength. Great for cloning, scratch building and repairs!