Customer Rating: Summary: power pak level 3 and 4 Comment: I have already used the power pack 1&2. I started using the 3 when I received it and can notice the difference. I definitely feel this adds ato my treadmill workout and would recommend it.
If you want to maximize your PowerBelt workout, take it to the next level with PowerPaks Level 3 and Level 4. These interchangeable packs easily attach to your PowerBelt and increase the intensity of your workout. The result is greatly increased calorie burn, muscle toning and cardio conditioning.
Includes one pair of Level 3 and one pair of Level 4
