This is the Hitec HS-65HB Mighty Micro Feather Servo with the Universal Connector. Because this has the universal connector, it will work with JR, Hitec, Futaba, and Airtronics Z radio systems. This is great for micro helicopters, park flyers, and 1/18 scale cars.
Includes: (1) HS-65HB 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
Specifications:Length: 0.92" (23.6mm)Width: 0.45" (11.6mm)Height: 0.94" (24mm)Weigth: 0.38oz (11.2g)Speed: 0.14/60° @ 4.8VOutput Torque: 24.99 oz-in @ 4.8V