This is a small tracked robot equipped with 42mm motors, a motor controller, and Spektrum remote control. This is a customized prebuilt version of TP-230-042 with added track brackets.
The HD2 tracked platform is a large, heavy duty tracked robot with the power to pull a truck and climb stairs. A wealth of internal space allows for batteries, controls and an optional computer. Customized version of item TP-200-001.