German origin  The most popular and versatile training tool-made in Germany-the new type of size gymnastic ball is specially designed for safe exercise. Due to its soft and handy surface, it is comfortable to use and provides safety for balance exercises. In addition, it is an ideal stability for exercises in sitting and kneeling and is particularly suitable as a Dynamic Support Surface.Thanks to its light weight and size, this new type of fitness ball also allows ideal swing and rotation exercises to strengthen your body. The Redondo pool plus air can be easily inserted and discharged without the need for any pump.