Tone Fitness Kettlebell VERSATILE  Kettle bell training engages the entire body - particularly core muscles - for a sculpted, stable and toned physique. CONSTRUCTION - This kettlebell is filled with cement and coated with vinyl, offering a more economical choice to cast iron kettlebells. FEATURES - Generous wide opening handle for a comfortable grip and a flat bottom to prevent the kettle bell from rocking. FUNCTIONAL  Perfect for swings, deadlifts, squats, get-ups, snatches and other athletic or cross training workouts. CHOICES  This kettlebell group from Tone Fitness is available in sizes from 5, 10, 15 and 20 pounds. You may also purchase them as a set.