CENTURY 3 BLADE TAIL ROTOR UNITThe scale tail rotor unit completes the authenticity of that fantastic scale fuselage while improving the tail response speed. Each blade grip has ball bearings for incredibly smooth performance. Fits 5mm tail rotor shafts. Tail output shaft shown not included. Requirements: 1x TAIL PITCH SLIDER SET [HI3087A] 1x 6x10x3 BALL BEARINGS (2pcs) [CNBB1060]