Bone shape dumbbell advantage:

1) Often do dumbbel exercise of the chest expansion and can enhance the growth and development of the chest and firm,away from the chemical products .let you hold out a bosom.nutural beauty of nutural.

2) Exercise makes your body naturally straight,hips become warpedon intangible,boo naturally formed.

3) Compared to before the elephant leg.practice after the jump hold .the leg muscles tight,long practice slender legs.

4) Environmental and No smell.

5) Neoprene surface absorbs excess noise - ideal for home use