Navy balance ball for enhanced stability. - Brand: PROIRON - Color: Purple - Type: Balance Ball, Half Balance Ball, Balance Dome Thank you for viewing. I purchased this thinking it would be good for exercise during the COVID-19 pandemic, but I didn't use it much and it's been stored away. What I'm sending is only the main body shown in the photos. There is no box, so I will pack it and ship it. Please check the photos before purchasing. I will comply with Mercari's regulations, so if you have any questions or concerns, please contact me before purchasing. The following is an excerpt from the web: 【Excellent Stability, Safe Anti-Burst】With a 3mm thick ball wall, a wear-resistant PVC stand, and 6 thick feet, the ball receives force evenly, and the base is stable. The unique concave design inside the base prevents instability when stepping on it, providing solid support for balance board muscle training. 【Non-Slip Processing】Non-slip patterns ensure maximum safety. The spherical design with wave patterns and a polished texture provide excellent simplicity and non-slip properties. 18 rust-resistant screws securely lock it in place, making it resistant to rust and moisture. 【Wide Variety of Exercises Possible】Sit on the soft surface, lift your legs, and train your abdominal muscles. The soft surface bounces quite a bit, so adults can bounce on it like a trampoline. It is also said to be very good for the development of children's motor skills, such as jumping, and it also develops a sense of balance. Cheerleading Cheerleading Junior Athlete Ballet Figure Skating Gym, Home Training Muscle Training Core Training Core Balance