The ProsourceFit Vinyl Kettlebells provide an excellent full body workout and can be done anywhere. A more economical choice than cast iron these concrete kettlebells are vinyl-coated to reduce floor damage and noise. The heavy uneven distribution of weight forces your body to build core strength and balance when in use. Great for squats swings cleans presses and a variety of other exercises that are proven to build muscle size and strength. The extra-large handle makes it easy to grip with one or both hands for a safer more comfortable workout and the durable material is built to last without wear and tear. Available in a variety of weights so they can be used by both beginners and advanced athletes. For questions or concerns please contact customer service: (855) 552-2637. We are open Monday - Friday from 8:30AM - 4:30PM Pacific Standard Time