The Guide Rail Adapter is for use with the Gecko Suction Handle and the Festool Guide Rail System. Using the suction handle, the adapter glides smoothly along the guide rail allowing you to make precision cuts. Because the handle is equipped with dual quick-release suction cups that form a tight seal with your material, your attached guide rail won't budge during cutting or routing operations. Includes guide rail adapter only (guide rail and suction handle sold separately).