Champion Sports Fitpro Ball Bundle with Stability Legs 55 cm Royal Blue Bundle with 1 Performall Lanyard BL55-1P Bundle includes 1 Champion Sports 55 cm Fitpro Ball With Stability Legs Royal Blue and with 1 Performall Lanyard Performall Sports Lanyard measures approximately 32 inches in circumference making it ideal to wear around your neck; The lobster clasp on the end makes it snap to attached keys or a whistle The Champion Sports FitPro Ball with Stability Legs promotes good posture while sitting at home, at the office, or at school! Made of the highest quality Italian resins, this ball is burst resistant, and provides ergonomic benefits by using trunk and abdominal muscles for core strengthening It can also be used for stretching or exercise, and the four legs prevent the ball from rolling away We offer the FitPro Ball in four sizes