This plastic kettlebell set includes 5lb, 10lb and 15lb kettlebells to allow a wide variety of exercises and progression. These kettlebells feature a cement core covered with a durable, high-strength HDPE shell. The wide grip handles and textured surface provide secure handling during swings, presses, snatches, and other dynamic moves. 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 engages more stabilizer muscles and works the targeted muscles through a wider range of motion.