Dumbbells are inexpensive, free weights that help in conducting several types of health exercises to get an individual's development of wellbeing. Dumbbell training is dependent upon the weight of the barbell, the speed of the exercise, and the number of repetitions of a specific exercise you execute. It is possible to purchase dumbbells with numerous weights like 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 LBS dumbbell, etc.