Estes Rockets 3177 BT55, BT60 Body Tube Couplers, for Model Rockets, (6Piece)

Includes 6 tube couplers in 2 different sizes. Bt55 and Bt60. Perfect for connecting 2 Body tubes of the same size together!6 tube couplers2 each. Bt55. 1.25 inches long. 2 each. Bt60. 1.5 inches long.2 each. Bt60. 3 inches long.