These are considered Sub-miniature servos The servos are made by Hitec. On all Hitec servos the Black wire is 'ground', the Red wire (center wire) is 'power', and the yellow (third) wire is 'signal'. This servo has a Hitec/JR connector which mates directly with a 0.1" 3-pin header. This servo comes with servo arms.
These are HiTec HS-422 Servos for use in any application.
This is a custom tank that we built with powerful wheelchair motors. The platform has 6 inch wide treads allowing this robot to navigate the toughest terrains.
This is our prebuilt HD2 Mastiff robot with a 6 axis robotic manipulator arm. This robot is loaded with all the options and is ready to ship.