They are a TN tractor with a track system added to it. Well I should not put it exactly like that. What I should say is the base unit transmission and engine are a TN tractor according to our parts books anyways. We have never sold one but we have seen them at dealer gatherings. They are really designed for agricultral work. New Holland does make a blade kit for it. They are made by fiat in italy. New Holland contracts out very few of there tractors or implements. The implements they do contract out are mostly the smaller ones used on the Boomer line.