"As much as I like to think of myself as a dumbbell person — you can't go wrong with squat presses and some good ol' fashioned bicep curls — I'm a big believer in switching up your workouts to keep things interesting and to find new tools to build strength. Kettlebells are great because they're versatile in function (you can grip the handle in many different ways) and work your entire body, including your core. If you're searching for a way to save money and space, you might want to consider trying the Kettle Gryp ($35). It's a portable device that can, as the name suggests, turn dumbbells into kettlebells. This definitely constitutes a good investment. For $35, you can turn light weights, medium weights, or heavier dumbbells up to 55 pounds into kettlebells without actually needing to buy multiple kettlebells." — Samantha Brodsky, assistant editor, fitness
Read the full Kettle Gryp review.