The Adjustable Guide Combo Pack is to be used with the PRO-Grip Wide body Guide (Not Included) or any Pro-Grip Straight Edge Clamp (Not Included). Attaching these two accessories to your PRO-Grip Wide Body Guide or Pro-Grip Straight edge Clamp will allow you to perform 90° cuts as well as angle or tapers on large and small sheets of stock. The 360° clamps rotate to allow the pad of the clamp to be secured firmly to your stock without interfering with the cutting process. The Adjustable Guide attachment fits neatly into the built-in track of your PRO-Grip Clamp and secures with two knobs.