Is it useful to throw dumbbells?

I've never heard of playing dumbbells. I know there are plastic-impregnated dumbbells, foam dumbbells, bone dumbbells, electroplated dumbbells, painted dumbbells and rubber-coated dumbbells. I'm not familiar with that swinging dumbbell. Could it be the one below? Dumbbells are very useful. They can exercise biceps brachii while exercising their arm strength, and they can also increase their muscles. It feels good.