Two sets of popular weight ranges in the Eleiko Training Kettlebells. They are durable, well-balanced high-grade cast iron kettlebells with a wide flat base for stability. The size and diameter vary depending on the weight and kettlebells are calibrated for accuracy. The kettlebells are double moulded with a consistent texture across the entire surface that holds chalk well and ensures a good grip. A surface treatment maximizes durability and ensures kettlebells stand up to the demands of hard training.