This is the Great Planes Motor System for use with park flyers such as the Great Planes Fundango or other models which require a Speed 400, micro BEC ESC (not incl.), and 3:1 gear ratio. FEATURES: lightweight, complete, easy to use power system for park flyers. INCLUDES: T400 Ferrite Motor S400 3:1 ratio Gear Box APC 10x7 Slofly propeller Instructions and mounting hardware 4 screws (2 short for gearbox to motor and 2 long for gearbox through a mounting plate to motor)