Retail Price: $2.49
Our Price: $1.99
ModelRockets.us BT-50 to BT-55 Fiber Thrust or Centering Ring 2 Pack - Two Kraft Fiber rings that can be used to center a BT-50 Tube into a BT-55 tube.
Price is per pack of 2.
Model rocketry is recommended for ages 10 and up with adult supervision for those under 12.