Powercore Rubber Hexagon DumbbellsThe Powercore Rubber Hexagon Dumbbells are very popular, especially for Crossfit and Functional training. Often people prefer round dumbbells as you can push dumbbells around with your feet. This is not the right way to transport dumbbells. Dumbbells should always be picked up and never rolled around or dropped. Hexagon dumbbells are used like normal round dumbbells, but they allow for additional floor exercise options such as pushups and planks. The