This is the Carbon Fiber Vertical Fin for the Thunder Tiger Raptor X50 Helicopters. FEATURES: Carbon fiber construction, black in color INCLUDES: One carbon stabilizer fin Two M3x25 socket Head screws One M3x10 Socket Head screw One M3x6 Socket Head screw Two M3 locknuts REQUIRES: Installation onto helicopter SPECS: Length: 7.72" (196mm) Width: 2.4" (61mm) Thickness: 0.08" (2.1mm) lgm 03/02/11 ir/jxs