Black Iron Strength® Custom Barbells are the highest quality barbell on the market because of solid steel construction. They are in a category of their own because of the solid one piece construction with no welds or bolts using a proprietary press-through technology. Black Iron Strength® Custom Barbells have stand-alone features to include the most compact dumbbell on the market, military hard chrome finish on handles for durability, and precision comfort for a positive grip. Handles are also available with Antimicrobial Copper, which kills all germs 24/7.