● 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. and formed into a strong, balanced, single-piece casting with a flat wobble-free base. Made with a clean, consistent surface and durable powder-coat finish. ● COLOR-CODED RINGS & DUAL MARKINGS FOR BOTH LB & KG: Color-coded rings make different weights easy to identify at a glance. Each kettlebell is labeled with both LB & KG. No need to use the calculator to figure out how much you are swinging, Available in: 4kg; 6kg; 8kg;10kg; 12kg; 16kg; 20kg; 24kg; 28kg; 32kg; 36kg; 40kg; Marked in KGs and LBs.