Kettlbells are made to Build strength and get a great cardio workouts, can be used for lots of different exercises, These are solid-iron kettle bells and it features an easy-grip, classic-style handle and have a durable vinyl coating to protect flooring, Every weight size has a different color, so if you setup a exercise room or gym it will be easy to identify the weight by color, kettelbells Available in 5lb, 7lb, 10lb, 15lb, 20lb options.