Lifeline Kettlebells are manufactured with first run/virgin iron ore and are formed into a strong, balanced, single-piece casting with a flat wobble-free base. A clean, consistent surface and durable powder-coat finish gives Lifeline Kettlebells premium level quality. Kettlebell workouts deliver functional whole-body fitness by combining the burn of cardio with muscle building strength training and compound movements that deliver greater flexibility and coordination. Featuring the classic design popularized in Russia a few hundred years ago which allows them to be employed in countless ways—including swings, presses, rows, twists, squats and snatches, these kettlebells are weighted off-centered, which recruits more stabilizer muscles and works the targeted muscles through a wider range of motion.