yea i looked them up[arrester] the brand name is scorpio for atleast the one i was lookin at and they run 2-4 dollars for a 2 pack and i think you put them right behind the broad head....i was thinkin about goin to academy to see if they have them if not then sportsmanswarehouse....man 7 yds that is close....when you start seeing them within lets say 40-50 yds do u still continue to call or you just let themsee the dekes