The Cast Iron Kettlebells work as weight resistance and counterbalance for a variety of upper and lower-body exercises. Ranging from 4 KG (9-pounds) up to 32 KG (70-pounds), these single, solid piece casts are machined with flat bases that allow for push-ups and no wobbling. Constructed with a durable, smooth wide-loop handle and a round profile with debossed weight indications in KG and LB. These kettlebells are an ideal purchase for building muscles, enhancing core strength, and improving balance.