This is the Futaba S3114 Micro High Torque Servo.

Features:

• Ideal for electric planes and small electric helis
• Nylon gears
• One year warranty

Includes:

• Futaba S3114 Micro High Torque Servo
• One .91 x .64 (23mmx16mm) 4 arm servo horn (comes pre-installed)
• One 1.33 x 1.33 (34mmx34mm) 4 arm servo horn

Requirements:

• Installing in aircraft and connecting to receiver

Specifications:

6V 4.8V

• Torque: 24 oz-in (1.7 kg-cm) 21 oz-in (1.5 kg-cm)
• Speed: 0.09 sec/60 0.10 sec/60
• Dimensions: 0.9 x 0.4 x 0.8 (7/8 x 7/16 x 13/16) (22 x 11 x 20mm)
• Weight: .28oz (1/4oz) (7.8g)
• Lead Length: 6.5 (165mm)
• Output Spline Diameter: 4mm