Meet the Total Gym Jump Trainer: a workout machine designed to build explosive power in your muscles and develop lower body muscle mass. The Jump Trainer lets you control up and down stages of a squat and allows for variations. The machine delivers concentric and eccentric muscle contractions.
More gadgets like this ➡️ : here
The Jump Trainer has an adjustable design. It is made of steel and aluminum, so it will last you a while. You can find out more about it here.
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