2 of 2 people found the following review helpful
it says 75cm,
Verified Purchase(What is this?)
This review is from: Fitness Ball: Purple, 30in/75cm Diameter, Includes 1 Ball +1 Pump + 1 Page Instruction Chart. No instructional DVD. (Exercise Gym Swiss Stability Ball) (Misc.)
this was smaller than expected...and also delivery was expensive slightly disappointed at the cost too when it arrived but it is serving a purpose all the same.