48&#39;&#39; Universal T-Track with Hold Down Clamps,Rockler" /> Includes a 48'' length of our new anodized aluminum Universal T-track Includes: (2) Hold down clamps, (2) 5-Star Knobs, (2) 3'' T-Bolts Aluminum T-track is easy to cut to length Star knobs hold clamps firmly in position Hold down clamps accommodate material up to 2-1/2'' thick