Esercizio Aerobico Boxe Salto Salto Corda Cuscinetto Regolabile Velocità Fitness USA
Jumping rope for 10 minutes at a moderate pace is equivalent to running one mile in 12 minutes, cycling two miles in 6 minutes,or swimming a quarter mile in 12 minutes. - Heavy duty yoke connection ABEC-3 ball bearing for twist-free action.