Heretic Dominator belt tracking assembly. This item is brand new being sold by the designer and maker. $175.00 includes shipping in the USA. Payment is via PayPal and shipping via USPS. For addition pictures, videos, and information let me know. It was designed for and is used on my Heretic H2 Extreme performance 2" x 72" sander. Now it is available for retrofit onto your machine. It will solve whatever tracking issues you may be having due to inferior tracking mechanism. It can track in forward and reverse. Operation is easy uniform and smooth even under tension. The pivot point is centered inside the tracking wheel so that tracking changes do not affect tension. Short video to show how it moves. Short customer video showing it retrofit installed onto his SABER OSG machine and some discussion what issues it solved for him.