Kettlebells! Sounds heavy... and for good reason! These cast iron kettlebells with inlaid GladiatorFit logo are specially designed for competitions. Available in a range of weights from 8kg to 32kg, they are also a very popular tool for athletes looking to shape and tone their bodies. Lifting and controlling a kettlebell forces the abdominal muscles to tighten and can work every muscle in the body with just a few exercises! This seemingly ordinary object is actually a great ally for a complete workout and in addition to its versatility, it is solid.