That being explained, it can be difficult to find dumbbells at larger weights which have been rubber encased so this preference might be just what you will need should you be planning to raise some serious weight. The hexagonal head form is perfect for balance also. Do the straight-arm pullover. https://how-to-use-barbells-and-d53197.blogitright.com/26910411/what-does-how-to-use-barbells-and-dumbbells-mean