The VirtuFit PVC Kettlebells are made of PVC and filled with sand. A lot cheaper than cast iron kettlebells and you can do the same exercises with them. The kettlebells can last a very long time. The PVC outer layer protects the kettlebell from damage if it falls on the floor or collides with other objects. In addition, these kettlebells are beautiful to look at and compact and easy to store. The VirtuFit PVC kettlebells have a comfortable long handle with a good grip. This gives you more stability, even during heavy or prolonged exercises. Due to the PVC finish, the kettle bell feels sturdy but still pleasant to the touch, very important for intensive training! The anti-slip layer on the underside ensures that the kettle bell stays in place. The VirtuFit PVC kettlebells are available for both beginners and advanced users.