rubber-coated dumbbell 20kg dumbbell piece combination arm muscle exercise fitness equipment 30 40k hand bell adjustment weight

1. Long-term practice with dumbbells can shape muscle lines and increase muscle endurance. Regular heavy dumbbell exercises can make muscles firm and strong, and increase muscle strength.

2. It can exercise the upper limb muscles and the muscles of the waist and abdomen. For example, when doing sit-ups, holding a dumbbell in both hands behind the neck can increase the load of abdominal muscle exercises.

3. Can exercise lower limb muscles. For example, holding dumbbells with one leg squatting, squatting with both legs, etc.