See Amazon for details. Diameter: 35 cm 〇 Burns fat and strengthens abdominal muscles 〇 Promotes weight loss 〇 Core training 〇 Aerobic exercise 〇 Improves sense of balance Excellent condition! It's light, doesn't take up much space, and is great for easy training! Diet Buttocks training Home time Training Muscle training Shape up Abdominal muscles Core [About the product] Please check the condition in the photos. If you have any concerns, please feel free to ask questions in the comments. [Please note] As this is a personal sale, there may be some overlooked scratches or stains. Thank you for your understanding before purchasing.