1 The center of gravity of kettle bell is outside the palm, and the center of gravity of dumbbell is inside the palm.
The weight of kettle bells is mostly fixed, and many dumbbells are detachable and adjustable.
The kettle bell is easy to be tied to the body or rope, such as diving, weight-bearing pull-ups, bending arms and weight-bearing parallel bars, wrist rolling and so on.
4 kettlebells can also hook the quadriceps femoris with toes. Modern casting technology is developed, and traditional and ancient kettle bells made by casting are rare. In fact, dumbbells are similar to kettles, and basic movements can be done.