This is the off-set rubber track in the 260mm width for the Manitou group of mini excavators including the Mustang 250-Z, and Yanmar VIO 25-6A. This track uses the traditional Yanmar offset design where the track guiding system is off centered. This is just slightly longer than the previous generation tracks to generate less ground pressure and more counter balancing for the operator safety. There is a wider 300mm version of this track so please verify prior to ordering.