The Iron Gym 2 x 6kg Fixed Hex Dumbbells offer a simple and very effective way to strengthen and tone your entire body. They can be used as a standalone training tool, on a weight bench, exercise ball or as part of an aerobic exercise session. Working out with dumbbells enables countless exercises to be performed to hit every muscle in the body at any time. The vinyl coated hex dumbbells feature a six-sided, anti-roll design for safety.