By looking at the fixed weight of Hummer dumbbells, you can tell the truth from the falsehood. Dumbbell, English name dumbling, is an auxiliary equipment for weightlifting and fitness. Look at the fixed weight of Hummer dumbbells and you will know whether it is true or not. Dumbbell is a very small and portable fitness equipment, which has a wide range of uses and can perform a variety of actions. You can choose actions according to your own needs. No matter which part of your body you exercise, you can basically do it with dumbbells.