Yellow Rubber Wheels with a diameter of 3.7cm.

Photoelectric sensor tracking module for five-channel infrared detection tracking.

Tamiya’s steel-ball caster is a good way to give a “third wheel” to a small robot powered by a differential drive. The kit comes with enough parts to make two casters, either 25 mm or 35 mm in height.

Set of 1 0 nylon studs ideal for mounting all types of printed circuit boards, sensors, mechanical parts.

This rubber ring is used to attach the ultrasonic sensor.

This acrylic expansion plate lets you mount a variety of components to your Rover 5 tracked chassis. The 3 mm wide slots covering the plate support many configurations of sensors and other robot components.