So you want to work on your strength and conditioning? The IronMind Tough-As-Nails Sandbag can help. You can use it indoors or outside to simulate stone lifting. This sandbag also trains your grip, so it could work for MMA training. Made of Cordura, the bag holds 300-lb of sand when fully loaded.
More gadgets like this ➡️ : here
The above video shows the IronMind Sandbag in action.
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