FlextoneA(R) Battle BonesA(R) do what sheds can'ta |recreate an aggressive fight between two mature bucks. Two full racks give you double the volume, double the distance and double the realism. Each piece features Antler Mass TechnologyA(R), an innovative mold resembling the bone marrow found in antlers for an extra dose of authenticity. Produces the sound of an aggressive fight between two mature bucks Antler Mass technology resembles bone marrow found in antlers Racks stack together to fit inside your backpack Hex grip and offset handles for easy control Order today!