Analog servo with stronger metal gears. wear resistant case.Features single ball bearing and weighs just 16 grams only.Includes 3 servo horns. 0 rubber gromets.1 servo horn screw and 2 servo mount screws.22.7mm long x 12.5mm wide x 29.3mm tall. measurements exclude the servo gear and the mounting tabs on either side.Input voltage 4.8v 6v. Turning time in seconds 0.18