Brand new T-Tracks ... extras that we didn't use on a track table build out. These T-slots accept both 5/16" T-bolts and 1/4" T-bolts, as well as 1/4" Hex-bolts. QTY 1 : 48" QTY 1 : 36" QTY 1 : 30" - No mounting holes (you can drill where you'd like) QTY 1 : 24" QTY 1 : 24" - No mounting holes (you can drill where you'd like) Plus, a taper jig that lets you control your wood when making tapered or angled cuts on a table or miter saw. Constructed from sturdy aluminum, the jig adjusts between 1°-15° or 3" per foot on a graduated scale. Suitable for left or right-handed use, the handle and work stop can be assembled to either arm and be changed. T-TRACK SPECS: 3/4" Wide x 3/8" Deep T-tracks feature pre-drilled mounting holes in base Holes are 4" on center, 2" from each end Made of extruded aluminum TAPER JIG SPECS: Length: 24" Material: Aluminum Push Handle - Length: 2-5/8" Let me know if you have any questions and we are located in N / NE Portland for pick up. Thanks for looking!