Kettlebell and Medballs Go Ballistic With Keli Roberts The perfect combination of equipment to enhance your balance, endurance and heart training. To access this content, you must purchase Kettlebell and Medballs Go Ballistic!, OnDemand Monthly Subscription Payment Plan, OnDemand Annual Subscription, OnDemand Monthly Subscription, OnDemand 6-Month Subscription or OnDemand 2 Year Subscription or log in if you are a member.