... hand -3 years warranty -Holds up to 28or35kg of water 80cm long x 65or78cm circumferenceHolds up to 28or35kg of waterPump ... the heavier, and more stable, and conversely with less water it will be light but hard to control!Perfect for ... jerks, snatches, swings, curls, French press, and many more…… water bag/Air& Water exercise bag/cylindrical bag/water fitness bag/air gyms bag/water air power strength ...