BOSU Ballast Ball PRO stays put, so that balls don't wander around the gym floor. Constructed of high-quality, burst-resistant material, it has a six-sided design for proper alignment and positioning. With the BOSU Ballast Ball, individuals can perform exercise progressions and dynamic drills that aren't possible on a regular stability ball. The product is translucent light blue with white multi-dimensional material, and includes a foot pump and workout DVD. Product can be inflated between 55cm and 65 cm, 6.5 lbs. Made in the USA.