Yes4All Powder Coated Cast Iron Kettlebell Strength Training Kettlebells Weight Set for Full Body Workout, Home GymHIGH 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 & 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