With a solid cast Iron core, these hex dumbbells are built to withstand even the most monstrous of workouts. They are a staple in any gym and or home gym. We have you covered for your whole journey. We coat the handle with a chrome plating to prevent rusting, as well as the end with rubber to extend the longevity of not only the bar, but your workout floor, you, and your other gym equipment. With the”Hex” end design, you can pickup the weights right from where you last put them, and not have them rolling off on you like other designs. Use different weights for different exercises to unlock your muscle growth potential.