The Knight & Hale Pack Rack Rattling System Deer Call twists back and forth to generate realistic fighting sounds that dominant bucks and elk just can't resist. Delivering unmatched realism and booming volume, even at long range or on windy days, this highly portable rattling system pieces together to provide completely silent carry.FeaturesHigh-density plasticDark green color easily blends with most camouflagesConnects for quiet portability when not in usePatented design produces intense rattling sequencesAuthentic fighting sounds at extreme volumesAttracts dominant, territorial bucksProven results based on extensive field testing