It's a question I sometimes remember, when doing fitness. I always wanted to wear weights on my arms or legs. But they are always filled with sand and are very bulky and weird. I am wondering, why we're not using more dense materials? Why not metal? The weights at the gym aren't sand.

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[–] 7 points 11 months ago (1 child)

This. Dirt cheap material cost, no additional machining costs.

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