One of the most common and cheapest workout tools is under investigation by the Consumer Product Safety Commision.
A fitness or stability ball is used to help build your core, but millions of fitness balls have been recalled due to risk of explosion.
The CPSC said over-inflated balls can suddenly burst while in use, causing the user to suddenly fall to the floor.
The CPSC has received 47 reports of the balls bursting causing injury in some cases.
The balls were distributed by EB brand and were sold under the names Bally, Total Fitness, Everlast, Valeo and Body Fit.
Concerned consumers can return the balls to the place of purchase or contact EB brands to receive a copy of the updated instructions on how to safely inflate the ball
The fitness balls in question were distributed by "EB brands," made in China, and sold between May 2000 and February 2009
They were sold with a pump and inflation instructions.
