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Challenge the deepest stabilizing muscles in your body while exercising on the unstable base of this stability ball™. Designed to improve balance and strength as well as tone your body, this Stability Ball is also used by Pilates enthusiasts as an office chair. Safety tested under 250 kg (550 lbs) of pressure. Sold individually, this stability ball is ideal for those under 185 cm (5'11") tall. Includes bonus exercise guide! Ideal for those 5'4 to 5'11" Anti-burst up to 550 lbs Includes hand pump Merrithew 26-in Silver Stability Ball with Pump
