This is a pair of 10" wheels and shafts. The shafts are machined steel with a welded hub. They are for our Heavy Duty and Enclosed Heavy Duty ATRs. These will not work for our Standard ATRs.
This is a small tracked robot equipped with 42mm motors, a motor controller, and Spektrum remote control. Don't let its size fool you. This is a customized prebuilt version of TP-230-042.