The Deluxe Router Table fence kit is two MDF fence plates supported by a solid aluminum "L" fence with built in track will comfortably accommodate router bits up to 3-1/2 in diameter and comes with all the necessary parts for quick and simple assembly. The system is also equipped with a dust port that envelopes the opening between the two MDF fence sections. The mounting fence has a unique shim system; each side of the fence can be shimmed with an aluminum bar that is inserted into offset tracks of varying depth, which in turn nudges your fence forward to the desired depth. Tall adjustment knobs allow easy access for moving your fence forward and backward. This system measures apx 24" in length . Table not included.