The Caldwell Tack Driver Shooting Bag is the most user-friendly and effective one-piece shooting bag available. This convenient shooting bag takes the place of two. You can use the TackDriver almost anywhere from shooting benches to makeshift positions in the field.FeaturesSelf-tightening surface grips your rifle and reduces felt recoilNon-marring, non-slip surface will not harm your rifle’s finishSupports almost any rifle or shotgun typeAvailable filled or unfilled