Made from extra thick and very soft, joint-friendly materials, expertly crafted. At the same time, these are extremely robust: bursting is out of the question. The medicine balls are skin-friendly, free from harmful substances, non-slip, and particularly durable. These medicine balls help you strengthen specific muscle groups in your body. Stay fit by performing the simplest exercises with the medicine balls. Designed to further enhance the results of your intense workout. Train whenever and wherever you want. Particularly easy to care for, simple to use, store, and transport. Made from resilient and durable materials. Suitable for beginners and professionals. Material: 100% rubber.