Our design team developed this kettlebell specifically for cross training. Combine muscle strengthening and cardio training! KETTLEBELL workouts give you more strength, more power but also more flexibility and resistance. Our design team developed this kettlebell specifically for cross training. How to choose your KETTLEBELLChoose the weight of your KETTLEBELL according to your physical abilities. Start with a 4 kg weight while you learn the right technique. Combine muscle strengthening and cardio training! KETTLEBELL workouts give you more strength more power but also more flexibility and resistance. Versatility Offers a complete workout.Combine muscle strengthening and cardio training! Durability Ultra-durable rubber base, protects floors against knocks. Ergonomic grip Wide, practical handle for gripping with 1 or 2 hands depending on the exercise. Our design team developed this kettlebell specifically for cross training. Versatility Offers a complete workout.Combine muscle strengthening and cardio training! Durability Ultra-durable rubber base, protects floors against knocks. Ergonomic grip Wide, practical handle for gripping with 1 or 2 hands depending on the exercise.