Combine the BOSU® Helm and the BOSU® Exercise Ball 65cm for an amazing home workout! These two products are designed to be used in conjunction. Use the Helm on top of the Exercise Ball for push-ups, planks, mountain climbers, and more! The Helm has three different grip options allowing you to target different muscle groups and up the ante on other exercises. The Helm can be used without the exercise ball for perfect push-ups, planks, and as a static weight. The Exercise Ball can also be used without the Helm for hundreds of other exercises targeting your upper and lower body while simultaneously challenging your core.