HS-55 Feather Micro Servo, 18oz/in, .14sec.

FEATURES: Very slim case and lightweight for mounting in small airplanes,
            electrics or gliders, where very high speed and good torque are
            critical.
          One of the slimmest micro servos available.
          High-strength resin gear train provides reliable operation.

INCLUDES: One HS-55 Servo w/pre-installed small X-shaped servo horn and screw
          One very small straight servo horn
          One M1.7x3 servo horn screw
          One small straight servo horn
          Two M1.7x7 servo mounting screws

                           at 4.8V
SPECS:    Speed:         0.17 sec at 60°
          Output Torque: 15.27 oz-in (1.1 kg-cm)
          Weight:        0.27oz (7.8g)
          Length:        0.89" (22.8mm)
          Width:         0.45" (11.6mm)
          Height:        0.94" (24mm)