RJX 85mm Carbon Tail Rotor Black RJX 85mm 3K CF Tail Blades Brand: RJXHOBBY Length: 3.3 inches (85 mm) (bolt hole to tip) Width: 26mm Route: 0.2 inches (5 mm) Bolt hole: 0.1 inch (3 mm) Weight: 4.6g (piece) Material: 3K carbon fiber