Tail boom brace H55037T for RC helicopter Align T-Rex 550. Included:Tail boom brace (Ø1.9xØ3.9x412mm) - 2 psc,Self tapping screw (M3x10mm) - 2 psc,Self tapping screw (T3x10mm) - 2 psc,M3 washer (Ø3xØ8x1mm) - 4 psc.