Dumbbell Russian twist, a group of 12~ 15, the weight of dumbbells depends on their own strength.

Dumbbells are used to roll the belly in Sicily. Belly rolling in Sicily with dumbbells in both hands. One group has 12~ 15 dumbbells. The weight of dumbbells depends on their own strength.

hard-working

One group has 12~ 15 dumbbells, and the weight of dumbbells depends on their own strength.

Dumbbell interactive rowing, one group 12~ 15, dumbbell weight depends on its own strength.