These Medium Universal filler tubes used in conjunction with Sandbag Training Outer Bags to add weight for workouts. These Universal Fillers are constructed of industrial strength Vinyl and are Guaranteed not to leak.. These Medium tubes weigh up to 60 pounds each when filled sand and can be used with any manufacturer's outer shells. Dimensions are 27 inches long by 9 inches wide when full but fold up very small weighing about a pound when empty. This is the perfect set up for those that like to bring there workouts on the road.
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