Analog servo with plastic gears, wear resistant case. Features double ball bearings and a carbon brush motor. Weighs just 36 grams only. Included 4 servo horns - 4 rubber gromets. 1 servo horn screw and 4 servo mount screws. 40mm long x 19mm wide x 38mm tall (measurements exclude the servo gear and the mounting tabs on either side). Images copyrighted by BlackSmith Products Ltd.