Summary

Dumbbell English dumbbell weightlifting and fitness exercise of a kind of auxiliary equipment.Smaller than a barbell.Light dumbbell weight 6, 8, 12, 16 pounds (1 pound = 0.4536 kg), etc.The weight of the heavy weights have 10, 15, 30 kg, etc.By the general fitness enthusiasts.Without a sound, when practice named dumbbells.

This report describes the development of the industry by upstream &