Estes Flying Model Rocket Kit Parts Centering Rings 3175
Includes 26 Centering Rings in 5 different sizes. BT5, BT20, BT50 and BT55. Perfect for making your own engine mounts!
26 Centering Rings
8 each. BT5 to BT20
4 each. BT5 to BT50
8 each. BT20 to BT50
2 each. BT20 to BT50 - 1 inch long
4 each. BT50 to BT55