Good to know- Get a full-body workout at home - this adjustable kettlebell lets you tone your muscles and burn calories without going to the gym- Choose the right weight for you by simply filling it with up to 8 litres of water- Hydro Inertia Training uses the water as a live weight to strengthen your core- Make the bell nice and firm by topping it up with the included air pump- The deflatable design means it won't take up much space when stored away