... Made of Zinc Alloy With Solid construction 2)Used to crush anything harder such as crabs,nuts,hickory Zinc Alloy Nutcracker/Nut ... shell This Nutcracker/Nut Cracker is made of zinc alloy, and comes with following salient features• Strong Lever action• Solid ... construction using zinc alloy• Black walnuts, butternuts, hickory,hazelnuts and ...