Keep empty shells from landing on the ground and distracting others. For use with the Singles discipline of trapshooting. When shooting Doubles, when hunting, or when not in use move the catcher wire to the down position. Package includes three pieces of double-side foam tape. Wire can be bent slightly to adjust as needed for your specific shotgun to help with consistent catching of the ejected shell. The black finish, of the all-steel construction, allows for a glare free inconspicuous addition to your shotgun.