This Sportsmith running belt fits certain Matrix T5 and T5x treadmills*.  If it's minimal maintenance you want, this PVC belt with impregnated lubrication requires less attention to make things run smoothly.  All Sportsmith belts feature components that make the best when it comes to quality and performance.  A top feature of Sportsmith belts is the non-directional, finger splice seam.  This means you can install the belt in either direction. 

*Some machines with the same name can use different parts. This is why you should always match your Brand, Model Name, Model#, Serial#, SKU details as provided.