This is the Hitec, Ultra Torque, Metal Gear Servo with a Futaba J, Hitec, JR, and Airtronics-Z Style Connector.
Three metal gears. Dual ball bearings. Metal 1st Gear. Four adjustable splined horns. For use with .60 size helicopters, glow or electric cars and boats. INCLUDES: One ultra torque servo with 11.5" connector wire. One white small X-shaped servo horn. One red Large X-shaped servo horn. One white adjustable servo horn. One white offset straight servo horn. Four 2 x 14mm mounting screws Four brass eyelets Four black rubber vibration isolators.
Futaba J, Hitec, JR, or Airtronics-Z radio system
Speed: 0.24 sec/60¡ at 4.8V 0.20 sec/60¡ at 6.0V Torque: 106.93 oz-in at 4.8V (7.7 kg-cm) 133.31 oz-in at 6.0V (9.6 kg-cm) Length: 1.59" (40.6mm) Width: 0.77" (19.8mm) Height: 1.48" (37.8mm) Weight: 2.11oz (60g)