ThunderBell: Multitool for Strength Training

Meet the ThunderBell: a multi-grip weight that can replace a dumbbell, kettlebell, and medicine ball. The 7-grip design lets you try various cardio and strength-building moves in the gym. ThunderBell engages more muscles in your body and allows you to keep your body guessing.

As you can see in the above video, ThunderBell facilitates dynamic movement training to build strength in your body. It is available in 6-, 10-, and 15-pound versions.