MyBall Soft has a foamed surface for extra soft feeling. Great exercise ball for exercising and training – stretch, strengthen and condition.
All our balls have burst level at least 300LB, if we mistake other ball, still 300LB level
There are some possibilities to cause the ball burst:
1). Load weight more than 150kg.
2). Ball is inflated too big (much more than 55cm or 65cm depending on size bought)
3). Ball too old, more than one year usage