GUIDE RAILS ONLY, exactly as shown. Includes required mounting hardware as shown. 24/12 refers to 24″ rip width on the right side, 12″ rip width on the left side. Note – this will NOT work with a Craftsman XR-2412 or a XR-2424 system. It will only work with an Align a Rip 24/12 or 24/24 rip fence. It will also work with an Align-a-Rip XRC fence but it doesn’t have the geared “teeth” for using the microadjust (not that important in my opinion, just making sure you understand what you are getting). If you need a complete system or other table saw parts, visit my. For even more options!