These are one of the most easily adjustable sets on this list—and for a really great price, too. Well-built, with a sturdy center grip, increase your weight from five to 25 pounds with the twist of a dial. And the durable molding around the metal plates makes for a smooth lift-off and quieter workouts.
Adjustable 25-lb dumbbell set,
$277 / $199.99 by FlyBird