Kettlebell Rubber Base 16kg Toorx. The innovative handle of the kettlebell facilitates weight training. With regular workouts lasting 15-25 minutes, it helps achieve high levels of fitness. They assist in burning fat and calories, increasing strength, flexibility, and balance. Kettlebell exercises activate all muscle groups, as their center of gravity is on the vertical axis, requiring more muscle activation. The rubber base protects the floor and reduces noise.