Size: 34" (85cm) for individuals 6'7" and up; Anti-Burst - Holds up to 2000 lbs; Pump and workout chart included; Slowly deflates if accidentally punctured
55cm ball is for users from 5"0" to 5'6" tall; Health club quality stability ball; Core Performance Training DVD included; DVD includes multi-level workouts, nutrition info more
75cm ball is for users from 6'1" and taller; Health club quality stability ball; Core Performance Training DVD included; DVD includes multi-level workouts, nutrition info more
Tough, thick burst resistant material resists puncture and pressure leaks; Great AB workout, 30% more effective than floor sit-ups; Non-Impact, total body workout