Get a total body workout with the CAP Barbell 50 lb. Cast Iron Kettlebell. Great for developing strength, power, endurance and balance as well as helping you sculpt and tone your entire body, especially the core, the kettle bell is made of cast iron to offer long-lasting use. Polished black finish. CAP Barbell 50 lb. Cast Iron Kettlebell, 50 Lbs - Free Weights/Bulk at Academy Sports