Kettlebells! It sounds heavy, and for good reason. Specifically shaped from cast iron, with an embedded GladiatorFit logo and weight, these kettlebells are designed for training. The handles have standardized colors for different weights. They are available in various weight classes ranging from 4 kg to 36 kg and are also very popular among athletes looking to shape and tone their bodies. Lifting and controlling a kettlebell forces the abdominal muscles to engage and can train 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. The cuff designs are formed from a colored line.