Kamagon Exercise Ball, Gray 14-Inch with workout DVD Requires 9 AA batteries (NOT

Requires 9 AA batteries (NOT included)

For Door Thickness 1 3/8 to 1 3/4 In

An elastic hem helps keep the cover secure to your vehicle

Frequency response: 29Hz-20kHz

Kamagon Exercise Ball, Gray 14-Inch with workout DVD Requires 9 AA batteries (NOTIntensify your next workout using the Kamagon Ball's patented Hydro Inertia technology. The use of fluid resistance wakes up more muscle fibers than traditional, static weight training using the same amount of resistance. The Kamagon Ball is a unique core stability product that bridges a necessary gap in the functional training market. Fill the Kamagon Ball with water to adjust the weight and create a "hydro inertia" that uses a greater number of