Price $6.00. SKU: 336-a. Water weighted medicine balls are an economical approach to Med-Ball training. An entire team can do upper body development and quickness drills at a fraction of the cost. Although Hydro-balls are not a durable as polymer Med Balls they work very well for most individual exercises and passing drills. Not recomended for rebound exercises.  Weight: 4 lbs.7 lbs. +$3.0012 lbs. +$6.00