The perfect accessory to add versatility to your Bench Cookie Plus Work Grippers (sold separately)! Risers XL (34671) allow you to double or triple the height of your Bench Cookie Plus discs when threaded into the center insert.XL Risers triple the height of your Bench Cookie Plus discs Raise workpieces for work with saws and other shop tools that require extra height Both sizes fit 3/4 bench dog holes or 3/4 holes drilled into sawhorses or other fixturesWhats in the Box? 4-Pack of Risers XL for Bench Cookie Plus