Work Out Tools: Get a portable training water bag. Maximum weight: The kettle bell can be adjusted to about 7 KG. Convenient: Folds up very small when empty making it is easy to take anywhere. Features: Lifting above the head keeps even the smallest muscles are activated, working with the larger muscles to maintain balance and strength. Maintain strength: Whole body exercise through instability and working out muscles. Portable Training Water Bag | Living Social