High-quality cast iron kettlebell: constructed of solid cast iron with no welds, weak spots, or seams. powder coating prevents corrosion and offers you a better grip with no slipping in your hand like a glossy finish color-coded rings &amp; dual markings for both lb &amp; kg: color-coded rings make different weights easy to identify at a glance.

Each kettlebell is labeled with both lb &amp; kg. no need to use the calculator to figure out how much you are swinging!