TrueTrac Pro-Series 4' Starter Kit Size:Large Saw Adapter Plate (10.25" Blade) How to tell the difference

How to tell the difference between E-Series and Pro-Series tracks:

One (1) 90 Degree Simple Square (w/ 12 inch connectors & hardware)

Riser Sets contain (2) "A" and (2) "B" blocks so that any number of risers can be stacked vertically by alternating F/A/B/A/B or F/B/A/B/A

but do not include the ball bearing itself

Working Area: Material Width: 22 in

TrueTrac Pro-Series 4' Starter Kit Size:Large Saw Adapter Plate (10.25" Blade) How to tell the differenceAdapts any standard circular saw into a precision track guided cutting tool Produces chip and splinter free cuts on both sides of your blade Provides an exact line of cut reference for effortless layout and cut setup Includes a total of 57 inches of guide rail, allowing overhang for starting and finishing a 48 inch or 4ft long cut