Parts for Rockets - Centering Rings - Fits BT-3 tube

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Semroc Centering Ring Wound Craft Paper BT-3 to BT-5 Long(1pk) SEM-TB-5 *

MSRP:

Was:

Now: $0.39

Semroc Centering Ring Wound Craft Paper BT-3 to BT-5 Long(1pk) SEM-TB-5 Also used as a Thrust …
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Semroc Centering Rings Fiber BT-3 to BT-20(2pk) RA-3-20 *

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Was:

Now: $0.89

Semroc Centering Rings Fiber BT-3 to BT-20(2pk) RA-3-20 Laser-cut rings for centering a BT-3 …
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Semroc Centering Ring Wound Craft Paper BT-3 to BT-5(EB-5)(TB-5)(1pk) SEM-CR-3-5 *

MSRP:

Was:

Now: $0.29

Semroc Centering Ring Wound Craft Paper BT-3 to BT-5(EB-5)(TB-5)(1pk) SEM-CR-3-5 Also used as a Thru…
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Semroc Centering Ring Wound Craft Paper BT-3 to BT-4(1pk) SEM-CR-3-4 *

MSRP:

Was:

Now: $0.29

Semroc Centering Ring Wound Craft Paper BT-3 to BT-4(1pk) SEM-CR-3-4 1 pack ID= 0.372" OD= 0.4…
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Semroc Centering Rings Fiber BT-2 to BT-3(2pk) RA-2-3 *

MSRP:

Was:

Now: $0.79

Semroc Centering Rings Fiber BT-2 to BT-3(2pk) RA-2-3 Tough Fiber 0.05" Thick ID= 0.218" OD…