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 or a XRC system. It will only work with an Align a Rip 24/12 or 24/24 rip fence. If you need a complete system or other table saw parts, visit my. For even more options!