The BOSU Exercise Ball, Blue 55 cm, is crafted for versatility and durability, making it an essential fitness tool. Designed by personal trainers, it features burst-resistant material and a textured surface to maintain grip during intense workouts. Proudly made in the USA, it reflects BOSU's 20-year legacy of innovation in fitness equipment. Available in two sizes, 55 cm and 65 cm, this exercise ball adapts to various workout needs, ensuring a reliable and effective fitness experience.