Qualman Rocketry CR5560 Centering Rings (8)
The Qualman Rocketry CR5560 centering rings come in an 8 pack and are used to center a BT55 tube (1.325 diameter) into a BT60 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!