Compared to the rest of our body the most dexterous appendages we have; our arms, are arguably the weakest. Making them stronger requires persistence, patience and a structured approach to building strength. The Arms of Steel Challenge is your gateway to stronger arms and a powerful grip. When coupled with the dexterity of movement that arms have naturally it transforms what are supposed to be really useful tools to potentially powerful, lethal weapons. Plus it makes carrying the groceries way easier.