You can try the two-move workout shown above with a dumbbell, but we don’t recommend it.

That’s because the design of the kettlebell makes it the best tool for certain exercises, like the overhead press and the swing.

Unlike the dumbbell—which sits symmetrically in the middle of your palm—the kettlebell’s center of gravity shifts away from your hand. You muscles need to work harder through a greater range of motion with every rep.

Its shape also makes it unstable, which activates your stabilizing muscles and your core to a greater degree. Because of this, the kettlebell automatically feels heavier than a dumbbell of the same weight when doing the same exercises.

And this effect is even more intense when you perform the movements with only one arm—like you will in this routine. Your core is already working overtime to steady the unwieldy tool, and now you’re asking it to fight against a weight pulling you to only one side.

The result is a two-move kettlebell workout that challenges your shoulders and core, and boosts your natural fat burners.