These are available individually should you wish to make an extended fence. The track lengths are each 610mm long and feature top and front T-slots. The track’s profile fits onto the top edge of a self-made wooden fence either side of a mitre saw, for example. A groove along the back edge forms a convenient guide for placing your drill bit to make screw holes. The T-slots give you the option of using any variety of home-made jigs or fixtures with the track.