Estes BT5-BT55 Centering Rings (26) 3175

Includes an assortment of twenty six Estes centering rings to fit BT5, BT20, BT50 and BT55 tubes. Perfect for making your own engine

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Estes Rockets 3175 BT5-BT55 Centering Rings, for Model Rockets, (26Piece)

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