GWS S03N 2BB Servo-motor
( 2 x Ball Bearing Servomotor )

Standard-torque Ball bearing servo-motor. This servo-motor has two ball bearings, generates 2.4kg-cm (47oz/in) of torque, and is easy to modify for continuous rotation.

This is the same sevo-motor that's included in the Mark III robot Kit.

SuperTec S03T/2BB/F
(GWS S06/2BB Servo-motor)

High Torque Ball bearing servo-motor. This servo-motor has two ball bearings, generates 7.20kg-cm (100oz/in) of torque.

GWS Piezo Gyro

GWS PG-03 Piezo Gyro. This tiny gyro is about 1" square and weighs less than 0.3 oz! Piezo gyros can be used in robotics for balancing, or to detect rotation, or to drive a "tracking" servo which continues to point to a fixed object even if your robot turns.

Saturn S62 Feather Servo

The Saturn micro servo is compact, lightweight, offers good resolution and impressive power for its size.