No, this isn't a tank tread; this is a 1m long Cable Carrier with 25x25mm bits composing its main body and two screw fasteners at each end for efficient mounting. Sometimes called a "drag chain," each carrier can be used in projects with many moving parts to protect internally installed cables, pipes, or tubes so they can be bent and moved while remaining protected. Cable carriers can most commonly be found in 3D printers and CNC machines, but they can be used in any situation where you need cables or tubes to bend without the risk of them being damaged or worn out prematurely.