Estes Rockets EST3179 Laser Cut Centering Rings and Paper Adapters (4 pc)

Precision Laser cut Centering Rings (30 total) and Paper Adapter Shrouds (4 total).

4 sheets.
2 sheets each. 15 Laser cut Centering Rings per sheet. BT5 to BT60-assorted sizes.
4 each. Heavyweight paper adapter shrouds to make BT5 to BT60 transitions and tail cones.