Meet the Spud Inc Econo Hammer: a training tool for track and field athletes that helps them improve their hammer throw form. It has a 50” looped strap and lets you use up to 40 lbs steel plates to push your body. You can add weight by sliding a plate down the strap to the solid metal ring. Costs under $40 at this time.
More gadgets like this ➡️ : here
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