This is the Hitec HS-65MG Mighty Feather Metal Gear Micro Servo with Universal Futaba J, Hitec S, JR and Airtronics Z Connector. FEATURES: HS-65MG has long lasting and durable metal gears One of the slimmest micro servos available High efficiency Neodymium magnet motor The HS-65MG was created for fast Park Flyer models, electric micro planes, MAVs and 1/18 scale cars, and features a top ball-bearing for long life and positive centering INCLUDES: (1) HS-65MG Micro Servo (4) M1.7x7 servo mounting screws (1) Two-sided servo horn (1) One-sided servo horn (1) M1.7x3 servo horn screw (1) Four-sided servo horn SPECS: Length: 0.92" (23.6mm) Width: 0.45" (11.6mm) Height: 0.94" (24mm) Weigth: 0.44oz (12.5g) Speed: 0.14sec/60° @ 4.8V 0.11sec/60° @ 6V Output Torque: 24.99 oz-in (1.8 kg-cm) @ 4.8V 30.55 oz-in (2.2 kg-cm) @ 6V COMMENTS: For Gear Set order HRCM5315. mcw 3-24-06 ir/jxs