Exertools Dyna-Disc
The Dyna-Disc is perfect for seniors, students or anyone who is uncomfortable getting on a gymball AND it can be stood on for lower extremity balance training.
It is ideal for back pain sufferers to use at home, in the office or even at a ball game. Inflatable with a standard ball needle and pump, the Dyna-Disc can withstand up to 2,000 pounds of force per square inch.
