This tank is the newest T90 Pro (new molds!) with not only steel gearboxes but a totally new and redesigned smoke unit too.
The 6.0 system features 5 different sound sets built in, separate up and down elevation, and proportional throttle. There are also lots of other wiring changes and features added to the boards as well.
This tank comes equipped with steel gearboxes, metal caterpillar tracks, metal drive wheels, metal road wheels with rubber tires, and metal idler wheels instead of the plastic versions found on the normal tank. This tank also comes with an upgraded lithium battery and USB charger and is available as in a soviet green paint scheme.
*This T72 is brand new from HL! There is also a new smoke unit which has the pump and heating element separately wired to the motherboard. This is a new version and not widely distributed yet!*