VF Marathon Creasing Matrix
Made specifically for long runs, VF Marathon vulcanized-fiber-based matrix has minimal base material and a lower profile for faster run speeds. It self-locates and there's no messy residue since the locator is thermally bonded. Now featuring chamfered edges, the vulcanized fiber base will withstand wear and abrasion longer, allowing you to run until the job is done. The numbering system for the sizes correlates to the depth and width of the channel- the first 2 numbers represent the depth of the channel, while the following numbers represent the channel width.