Harbinger Weighted Fitness Balls with straps are my new favorite work out toys. These fitness balls are like a combination between dumbbells and medicine balls. They come in weights of 6, 8 and 10 pounds and have a Velcro strap so that you can isolate specific muscle groups or body parts.
Why we love them: The straps make them versatile so you can easily train all parts of your body rather than just your arms, but they are still great for doing most arm work such as front raises and hammer curls. They are colorful and great for home use but relatively transportable for traveling as well. Buy them here.